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: Which two teams played in the 1981 NCAA tournament championship game? Passage 1:In 2013, Willis co-presented the ITV game show Prize Island with Alexander Armstrong. In 2015, Willis was a team captain on the six-part ITV2 comedy panel show Reality Bites, hosted by Stephen Mulhern. On 2 July 2015, it was announced that Willis would present a new three-part series for ITV called What Would Be Your Miracle, about modern miracles. The series began on 28 April 2016. In January 2017, The Voice UK moved from BBC One to ITV. It was confirmed on 9 June 2016 that Willis would present the series after co-hosting three previous series on the BBC. She also presented two series of The Voice Kids on ITV since 2017. In 2017, she presented The BRITs Are Coming live on ITV. She co-presented the 2017 BRIT Awards in February alongside Dermot O'Leary. She hosted The BRITs Are Coming for a second year in 2018. She presented Your Song in 2017, a one-off special for ITV.
 Passage 2:In 1950, Admiral Arthur W. Radford, Commander-in-Chief of the United States Pacific Fleet, envisioned an naval base in the Western Pacific to enhance Seventh Fleet capabilities. The Korean War began and the Navy realized it had a need for an air station in the region. Cubi Point in the Philippines was selected, and civilian contractors were initially approached for the project. After seeing the Zambales Mountains and the surrounding jungle, they claimed it could not be done. The U.S. Navy then turned to the Seabees and was told no problem, Can do. The first Seabees to arrive were surveyors of Construction Battalion Detachment 1802. Moblie Comstruction Battalion 3 arrived on 2 October 1951 to get the project going and was joined by MCB 5 in November. Over the next five years, MCBs 2, 7, 9, 11 and CBD 1803 also contributed to the effort. They leveled a mountain to make way for a nearly runway. NAS Cubi Point turned out to be one of the largest earth-moving projects in the world, equivalent to the construction of the Panama Canal. Seabees there moved of dry fill plus another 15 million that was hydraulic fill. The $100 million facility was commissioned on 25 July 1956, and comprised an air station with an adjacent pier capable of docking the Navy's largest carriers. Adjusted-for-inflation, today's price-tag for what the Seabees built at Cubi Point would be $906,871,323.53. After decades of use by American forces, Mount Pinatubo erupted in 1991, burying Cubi Point in 18-36 inches of ash. Despite this, the American government wished to keep the Subic Naval Base and signed a treaty with the Philippine government. The treaty was not ratified, however, failing by a slim margin in the Philippine Senate. Attempts to negotiate a new treaty were soon abandoned and the United States was informed that it was to withdraw within one year. U.S. forces withdrew in November 1992, turning over the facility with its airport to the Philippine government.
 Passage 3:The Tigers improved again in the 1980–1981 season. In fact, it would be the winningest year in LSU history. This year, Dale Brown took his team to the Final Four, the second in LSU history, and the first of the Dale Brown era. The team finished 31–5 (most wins in the nation) and won the conference championship with a 17–1 record. The team also set a school record winning 26 straight games, including its first 17 conference games and the only SEC team to ever win 17 consecutive league games in the same season with only a loss to powerhouse Kentucky in Rupp Arena stopping LSU from becoming the only team to complete an 18-game SEC slate with an unblemished mark. Rudy Macklin was an All-American, as well as First Team All SEC. Ethan Martin also made First Team All SEC, and Howard Carter made the Second Team. LSU advanced to the Final Four by beating Wichita State 96–85 in the Elite 8 round of the 1981 NCAA tournament, played in front of home-state fans in the Louisiana Superdome. To reach the regional final, LSU defeated future SEC rival Arkansas, coached at the time by Eddie Sutton, who would tangle with Brown for four seasons at Kentucky.

Student:
3