Detailed Instructions: 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.
Problem:Question: How old was Paul V. Niemeyer when Krueger was sworn in as United States Attorney? Passage 1:Matthew Dean Krueger (born 1978) is an American lawyer. He currently serves as the United States Attorney for the Eastern District of Wisconsin. He was previously an Assistant United States Attorney for the same district. Krueger worked at the U.S. Attorney's office from 2013 to 2018. He was previously an associate at Sidley Austin and a Bristow Fellow in the United States Department of Justice, Office of the Solicitor General. Krueger clerked for Paul V. Niemeyer of the United States Court of Appeals for the Fourth Circuit. He is a graduate of the University of Wisconsin–Madison and the University of Minnesota Law School, where he served as editor-in-chief of the Minnesota Law Review. On February 15, 2018, his nomination to be the United States Attorney was confirmed by voice vote. He was sworn in on February 22, 2018.
 Passage 2:Operation Deny Flight was a United Nations-enforced no-fly zone over Bosnia and Herzegovina due to the deteriorating situation in the Balkans. In August 1993, F-15Es from 492d and 494th FS deployed to Aviano, Italy. In late 1993, NATO ordered a limited F-15E strike at Udbina airfield, targeting Serbian forces in neighboring Croatia. Eight F-15Es armed with GBU-12s took off to attack an SA-6 anti-aircraft vehicle; the mission was cancelled mid-flight over the application of stringent Rules of Engagement. In December 1993, F-15Es launched to destroy a pair of SA-2 sites which had fired upon two Royal Navy Sea Harrier FRS 1s. In August 1995, F-15Es of 90th Fighter Squadron joined the two other squadrons. The 492d and 494th flew over 2,500 sorties since Deny Flight had begun, 2,000 of these were by 492d. In August 1995, in support of NATO's Operation Deliberate Force, F-15Es flew strike missions against Serbian armor and logistics around the Bosnian capital, Sarajevo. On 9 September, an F-15E deployed the first GBU-15 bomb for the type; a total of nine were dropped against Bosnian-Serb ground forces and air defense targets around Banja Luka.
 Passage 3:Thirty-five of the listed players have played for only one franchise. Four of those players played exclusively for the Montreal Canadiens and five played for the Detroit Red Wings, those teams having the most such players. The record for most teams played for by a player who has competed in over 1,000 games is held by Mike Sillinger, who played for 12 teams in his career; Sillinger played his 1,000th game with his 12th and final NHL team, the New York Islanders. Patrick Roy, Martin Brodeur and Roberto Luongo are the only goaltenders with at least 1,000 games played. Roy spent his career with the Montreal Canadiens and the Colorado Avalanche while Brodeur played for the New Jersey Devils and his final seven games with the St. Louis Blues. Luongo played for the New York Islanders, Florida Panthers and Vancouver Canucks in his career. The first goaltender was Patrick Roy, playing in his 1000th game in the 2002–03 season.

Solution:
1