You will be given a definition of a task first, then some input of the task.
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: Who piloted the airplane that killed Mulgrew Nunatak in 1979? Passage 1:Carter started his career as an apprentice at Brighton & Hove Albion but failed to make the grade for the first team. He made his first team debut in April 1987 in a 1–1 draw with Blackburn Rovers, coming on as a substitute and almost scoring with his first touch. He subsequently dropped down to the Isthmian League where he spent a season with Billericay Town. He was signed by Fourth Division side Leyton Orient in July 1988 and remained a first team regular in his seven-year spell at the club, which included promotion to the Third Division in his first season with via the play-offs. In June 1995, he joined newly relegated Second Division side Peterborough United for a fee of £25,000. He was a first team regular in his first season with the club but dropped out of the side in his second season as the club narrowly avoided relegation twice. Following his release he spent time on trial at Cambridge United and Wycombe Wanderers, however, both were unsuccessful in earning a full-time contract. He subsequently signed for Welsh Premier League side Barry Town, where he spent two seasons and made a total of sixty league appearances, scoring ten goals. He later joined Southern League Premier side Merthyr Tydfil in 1999 and spent six seasons with the club making over 200 appearances. He was also the club captain. In the summer of 2005 he signed for newly promoted Welsh Premier League side Cardiff Grange Harlequins but only made eight league appearances and the side couldn't avoid relegation at the first attempt.
 Passage 2:Mulgrew Nunatak () is a prominent nunatak, 1,600 m, standing four nautical miles (7 km) east of Tentacle Ridge in the Cook Mountains. Its summit, standing at , is named Peter Crest. The nunatak was first mapped by the Darwin Glacier Party of the Commonwealth Trans-Antarctic Expedition (1956–58). Both it and its peak were named for Peter D. Mulgrew, a New Zealand adventurer who accompanied Sir Edmund Hillary to the South Pole and served as the chief radio operator at Scott Base. He perished in the Air New Zealand DC10 scenic flight to Ross Island, 28 November 1979, when the airplane crashed near Te Puna Roimata Peak ("spring of tears" peak) on the northeast slope of Mount Erebus, killing all 257 persons aboard.
 Passage 3:The northern segment of the fault runs from Hollister, through the Santa Cruz Mountains, epicenter of the 1989 Loma Prieta earthquake, then up the San Francisco Peninsula, where it was first identified by Professor Lawson in 1895, then offshore at Daly City near Mussel Rock. This is the approximate location of the epicenter of the 1906 San Francisco earthquake. The fault returns onshore at Bolinas Lagoon just north of Stinson Beach in Marin County. It returns underwater through the linear trough of Tomales Bay which separates the Point Reyes Peninsula from the mainland, runs just east of Bodega Head through Bodega Bay and back underwater, returning onshore at Fort Ross. (In this region around the San Francisco Bay Area several significant "sister faults" run more-or-less parallel, and each of these can create significantly destructive earthquakes.) From Fort Ross, the northern segment continues overland, forming in part a linear valley through which the Gualala River flows. It goes back offshore at Point Arena. After that, it runs underwater along the coast until it nears Cape Mendocino, where it begins to bend to the west, terminating at the Mendocino Triple Junction.

Output:
2