Q: 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.
Question: How long had MIT been operating when Ray left? Passage 1:The fourth of 16 sons of a tribal chief of the Bantu-speaking Tsonga, Mondlane was born in "N'wajahani", district of Mandlakazi in the province of Gaza," in Portuguese East Africa (Mozambique) in 1920. He worked as a shepherd until the age of 12. He attended several different primary schools before enrolling in a Swiss–Presbyterian school near Manjacaze. However, he ended his secondary education in the same organisation's church school at Lemana College at Village above Elim Hospital in the Transvaal (Limpopo Province), South Africa. He then spent one year at the Jan H. Hofmeyr School of Social Work before enrolling in Witwatersrand University in Johannesburg but was expelled from South Africa after only a year, in 1949, following the rise of the Apartheid government. In June 1950 Mondlane entered the University of Lisbon, at Lisbon, the capital of Portugal. By Mondlane's request, he was transferred to the United States, where he entered Oberlin College in Ohio at the age of 31, under a Phelps Stokes scholarship. Mondlane enrolled at Oberlin College in Oberlin, Ohio, in 1951, starting as a junior, and in 1953 he obtained a degree in anthropology and sociology. He continued his studies at Northwestern University in Evanston, Illinois. Mondlane earned an MA and a PhD from Northwestern University and married Janet Rae Johnson, a white American woman from Indiana who then lived in the Chicago suburbs.
 Passage 2:Raymond "Ray" King (born 1964) is an American entrepreneur and co-founder of multiple companies including AboutUs.org and Top Level Design. He began his career by creating The Computer Workshop with a group of friends which offered computing classes at Grand Central Terminal in Manhattan. This venture earned him $60,000, enough to cover tuition at the Massachusetts Institute of Technology (MIT) for one year. King studied computer science there until he left in 1984 to start Semaphore Inc. which sold accounting and project management software, that he had begun developing in college, to architecture and engineering firms. He founded SnapNames, which specialized in "snapping up" expired domain names, in 2000 after relocating to Portland, Oregon. King left the company in 2005 and founded the wiki Internet domain directory AboutUs.org in 2006. He served as chief executive officer until stepping down in 2013. In 2012, he and his brother-in-law founded the registry Top Level Design, which manages the new top-level domains .design, .ink, and .wiki. King and his wife have one daughter and reside in the Portland metropolitan area.
 Passage 3:E11 was on her second tour when, on 6 August it successfully torpedoed the Turkish torpedo cruiser , causing serious damage. Two days later 8 August 1915 as a new British landing was underway at Suvla, E11 torpedoed the antiquated Turkish pre-dreadnought battleship off Bulair at the northern entrance to the Dardanelles. The ship sank with the loss of 21 officers and 237 men. Barbaros Hayreddin was one of two Ottoman battleships sunk during the campaign. Visiting Constantinople again, E11 sank a Black Sea collier Isfahan as it was preparing to unload — a significant blow as coal was the main fuel source and supplies were scarce. Moving into the Gulf of Izmir, on the night of 20 August, E11's first officer, Lieutenant Guy D'Oyly-Hughes, swam ashore and blew up a section of the Constantinople–Baghdad railway line, a feat for which he was awarded the Distinguished Service Cross (United Kingdom). Navigating Officer Lieutenant Robert Brown was also awarded the Distinguished Service Cross (United Kingdom). A reservist from the Merchant Navy, Brown had famously been born rounding the Cape Horn on the clipper John Gambles, the sister ship to the more famous Cutty Sark.

A:
2