Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Question: How many children did the person that David met at Yale Law School have? Passage 1:Safin's next tournament was in Valencia. He defeated No. 20-ranked and fourth seed Juan Carlos Ferrero. In spite of the fact that Ferrero is from the Valencia region, Safin was the more popular player, having been based in Valencia for many years and being a well-known Valencia CF fan. – local player Ferrero controversially favouring Real Madrid. He played Dutch teenager Robin Haase in the next round. He won the first set and was up 4–2 in the second set. However, Haase broke back to take it to a tiebreak. Safin had four match points, including one on his serve, but lost the tiebreak, and eventually the match. In the Monte Carlo Masters, Safin defeated Xavier Malisse, but then lost to No. 5 David Ferrer. He then entered the 2008 BMW Open in Munich, Germany, where he beat Carlos Berlocq in the first round. In the second round, he edged out Michael Berrer, but lost to Fernando González in his first quarterfinal of the year, and the first since June 2007 at the Legg Mason Tennis Classic in Washington, D.C. Safin entered the 2008 French Open but was eliminated in the second round by countryman and fourth seed Nikolay Davydenko, in straight sets.
 Passage 2:De Malmanche was educated at Hamilton Boys' High School and also attended Waikato Institute of Technology. He played club rugby for Hamilton Old Boys. He progressed through age-grade ranks and impressed at provincial rugby level in 2006 for Waikato, winners of the inaugural 2006 Air New Zealand Cup. He made his debut for Waikato in 2005 against North Harbour in Hamilton. He played over 35 games for them and scored three tries. His first Super 14 game was against the Brumbies in the 2007 Super 14 season. He was soon selected into the New Zealand Mǎori team, playing for them in the 2007 Churchill Cup against Canada. His first game for the All Blacks was against Italy in the 2009 mid-year rugby test series.
 Passage 3:Davis grew up in Jersey City, New Jersey, in a Jewish family. His father, Mort, was a dentist in Jersey City and his mother worked as the office manager of his father's dental office. He attended Newark Academy in Newark, graduating in 1962. As an undergraduate at Yale, he was a member of the Delta Kappa Epsilon fraternity. According to an item in U.S. News & World Report, as part of his initiation into the fraternity, Davis underwent hazing by, among others, the future President of the United States George W. Bush. He also served as chairman of the campus newspaper, the Yale Daily News. Davis went on to receive his J.D. degree from Yale Law School in 1970. It was there that he first met Hillary Clinton.

Student:
3