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: When did the US enter the war that McNamara fought in as a sergeant of the 87th Division? Passage 1:Ahead of the club's first season in League One, Westley adopted the same "five in, five out" transfer policy as he had done for the two previous seasons. Strikers Yemi Odubade and Charlie Griffin were the first to leave having been loaned out for much of the previous campaign, joining Conference National sides Gateshead and Forest Green Rovers respectively. Second choice goalkeeper Ashley Bayes opted to leave the club in order to play first-team football at Conference South club Basingstoke Town. Luke Foster and David Bridges also opted to leave Stevenage ahead of the season, both on free transfers, with Foster signing for Rotherham United, and Bridges for his former club, Kettering Town. Stevenage's first signing of the season was striker Guy Madjo, who joined on a free transfer from Albanian Superliga side KS Bylis Ballsh. Former Stevenage goalkeeper Alan Julian re-joined the club following his release by Gillingham, while Phil Edwards rejected a contract extension at Accrington Stanley in order to join the Hertfordshire club on a free transfer. Midfielders Jennison Myrie-Williams and Robin Shroot also signed on free transfers following successful trial periods with the club. In terms of transfers during the 2011–12 campaign, striker Don Cowan joined the club from Longford Town for an undisclosed fee in August 2011, and winger Luke Freeman signed from Arsenal in January 2012, after a successful three-month loan spell with the club. Strikers Byron Harrison and Guy Madjo both departed in January 2012, signing for League Two sides AFC Wimbledon and Aldershot Town for respective undisclosed fees.
 Passage 2:McNamara was a native of Fair Haven, Vermont, and attended the schools of Fair Haven. He graduated from College of the Holy Cross in 1915, studied law with a Vermont attorney, and attended Harvard Law School. Leaving law school early to enter the military for World War I, McNamara served in the United States Army and attained the rank of sergeant as a member of the 87th Division. After leaving the Army, McNamara was admitted to the bar and began to practice law in Burlington, Vermont. He became active in politics as a Democrat, and served as Burlington's municipal court judge from 1921 to 1923. After unsuccessful runs for Vermont Attorney General and the U.S. House, in 1933 McNamara was named US Attorney for Vermont. He held the post through the administrations of Democrats Franklin Roosevelt and Harry Truman, and resigned after Republican Dwight Eisenhower became president.
 Passage 3:In 1760 the French zoologist Mathurin Jacques Brisson included a description of the red-winged starling in his Ornithologie based on a specimen collected from the Cape of Good Hope in South Africa. He used the French name Le merle du Cap de Bonne Espérance and the Latin Merula Capitis Bonae Spei. Although Brisson coined Latin names, these do not conform to the binomial system and are not recognised by the International Commission on Zoological Nomenclature. When in 1766 the Swedish naturalist Carl Linnaeus updated his Systema Naturae for the twelfth edition, he added 240 species that had been previously described by Brisson. One of these was the red-winged starling. Linnaeus included a brief description, coined the binomial name Turdus morio and cited Brisson's work. The specific name morio or morion is Latin for "dark brown stone" or "black quartz". This species is now placed in the genus Onychognathus that was introduced by the German physician and ornithologist Gustav Hartlaub in 1849.

A:
2