In this task, you're given a question, along with three passages, 1, 2, and 3. Your job is to determine which passage can be used to answer the question by searching for further information using terms from the passage. Indicate your choice as 1, 2, or 3.
Q: Question: How many people were living in Iraq the year that Georges Sada was born? Passage 1:Georges Sada was born in 1939 in Iraq into a Christian family of Assyrian ethnicity (see his account). As a boy, Sada attended the Assyrian Church of the East with his family, later becoming a 'born-again' Christian and attending a more evangelical church. Throughout his childhood, Sada had a keen interest in military aircraft and the Air Force, playing as a boy at the RAF Base where his father was stationed, and imagining himself flying the fighters he saw taking off. In this time he did 'odd jobs' at the base, befriending both the pilots and the technicians who repaired their aircraft, resolving that one day he himself would have a career in the Air Force as a pilot. In 1958 at the age of nineteen, Sada applied to the air academy in Iraq and was accepted as a cadet, graduating from the Iraqi Air Academy in 1959. Over the following years he served as an Air Force Officer, including periods studying overseas in Britain, the USSR and the United States. Between 1964–1965 he was a student at Lackland Air Force Base in Texas. Sada's career in the air force spanned 28 years, from 1958 to 1986. He officially retired in 1986 as a two-star officer, but was later called back to active service as an Air Vice Marshal for the 1990 invasion of Kuwait. During the conflict Sada defied the orders of Saddam Hussein by refusing to execute POWs, attributing this disobedience to his strong Christian convictions. In interviews, Sada has described his attempts to persuade Saddam not to harm the prisoners (an action which would have violated the Geneva Convention and would have been a war crime): Saddam eventually relented and spared the POWs, although Sada himself was subsequently imprisoned for a time. In his book Saddam's Secrets, Sada states that Saddam did not want him harmed after his release, but wanted no further contact with him thereafter.
 Passage 2:Ali was one of several men hired by the United States Army to introduce camels as beasts of burden to transport cargo across the "Great American Desert." Eight of the men – including Ali – were of Greek origin. They arrived at the Port of Indianola in Calhoun County, Texas on the . The book Go West Greek George by Steven Dean Pastis, published in both Greek and English, specifically identifies all eight men. These pioneers were Yiorgos Caralambo (later known as Greek George), Hadji Ali (Hi Jolly, a.k.a. Philip Tedro), Mimico Teodora (Mico), Hadjiatis Yannaco (Long Tom), Anastasio Coralli (Short Tom), Michelo Georgios, Yanni Iliato, and Giorgios Costi. The Americans acquired three camels in Tunis, nine in Egypt and 21 in Smyrna: 33 in all. Ali was the lead camel driver during the US Army's experiment with the U.S. Camel Corps in using camels in the dry deserts of the Southwest. After successfully traveling round trip from Texas to California, the experiment failed, partly due to the problem that the Army's burros, horses, and mules feared the large animals, often panicking, and the tensions of the American Civil War led to Congress not approving more funds for the Corps. In 1864, the camels were finally auctioned off in Benicia, California, and Camp Verde, Texas. Ali was discharged from the Quartermaster Department of the U.S. Army at Fort McDowell in 1870.
 Passage 3:In 2009 the Taliban began moving even more men into Nawa, possibly for additional attacks against Lashkar Gah. On May 13, they launched an attack against the Afghan National Police in the district, that overwhelmed several posts. By late spring they had established a solid foothold in the district. On July 2, 2009, Marines from the 1st Battalion, 5th Marines (1/5) occupied the district as part of Operation Strike of the Sword. They set up their headquarters in Forward Operating Base Geronimo. On August 26, Lance Corporal Donald Hogan, a Marine with 1/5, threw himself in front of an improvised explosive device (IED), saving the Marines in his squad. He was later posthumously awarded the Navy Cross for his actions. In December, 1/5 was replaced by 1st Battalion, 3rd Marines. In the late summer and early fall the Marines detained Haji Adam, one of Nawa's main drug lords, and turned his house into Combat Outpost (COP) Sullivan. In November two local officials were assassinated. On December 17, Admiral Mike Mullen, the Chairman of the Joint Chiefs of Staff, visited Patrol Base Jaker and touted the security gains by touring the Nawa district center without wearing body armor. Several weeks later Afghan President Hamid Karzai and ISAF commander General Stanley McChrystal also visited Nawa on January 2, 2010. On January 9 British journalist Rupert Hamer and two Marines were killed by an IED in the district.

A:
1