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.

[Q]: Question: Where was McMahon's post-doctoral mentor from? Passage 1:Ain't She Sweet was an American album featuring four tracks recorded in Hamburg in 1961 by The Beatles featuring Tony Sheridan (except for the title song with vocal by John Lennon) and cover versions of Beatles and British Invasion-era songs recorded by the Swallows. As Atlantic Records only had rights to four Sheridan/Beatle recordings recorded by Polydor Records, they filled the rest of the album with Beatle and British Invasion cover songs. When this material was released by Atco Records, there were mono (catalogue number 33-169) and stereo (SD 33-169) editions. Atco also added additional drum overdubs to the four Sheridan cuts on top of the original drum tracks. American drummer Bernard Purdie claims to have performed overdubs of unspecified Beatles records, which would most likely have been for Ain't She Sweet, but this has never been officially confirmed.
 Passage 2:McMahon contributed to the understanding of retinal neurophysiology alongside his post-doctoral mentor, John E. Dowling. His early research focused on ion channels that mediate transmission at electrical and glutamatergic synapses and the modulatory effects of dopamine and nitric oxide on retinal synapse networks. Through studies with zebrafish he discovered that the neurotransmitter dopamine decreases the electrical coupling within horizontal cells. Further research showed that it was the increase of cAMP within the cell resulting from dopamine binding to AMPA receptor that led to this decrease in coupling. McMahon and his colleagues also demonstrated that exogenous nitric oxide and zinc can modulate AMPA receptor mediated synaptic transmission at gap junctions in hybrid bass retinal neurons.
 Passage 3:The river starts at Ralph Bice Lake (formerly Butt Lake) in northern Algonquin Provincial Park in the geographic township of Butt in the Unorganized South Part of Nipissing District. It flows south to Daisy Lake then east to Big Trout Lake. The river heads north out the lake over Big Trout Lake Dam, takes in the left tributary Tim River, flows over the Portal Rapids, Cedar Rapids, Snowshoe Rapids, Catfish Rapids, and Stacks Rapids to reach Cedar Lake, the location of the community of Brent, where it takes in the left tributary Nipissing River. The river exits the lake over a dam, heads through the Devil's Chute, reaches Radiant Lake, where it takes in the left tributary North River and right tributary Little Madawaska River, and passes through the Squirrel Rapids, Big Sawyer Rapids, Battery Rapids Cascade Rapids and White Horse Rapids, and takes in the right tributary Crow River. The river then continues through a series of rapids including the Devil's Cellar Rapids, passes the Algonquin Radio Observatory, and reaches Lake Travers. The Petawawa River enters a canyon and passes through numerous rapids including the Big Thompson Rapids, Little Thompson Rapids, Grillade Rapids, Crooked Chute, Rollway Rapids, The Natch, Schooner Rapids, Five Mile Rapids to arrive at Whitson Lake adjacent to the Petawawa Hills. It leaves Algonquin Provincial Park and enters the municipality of Laurentian Hills in Renfrew County, continues southeast past CFB Petawawa, passes through the Crooked Rapids, Race Horse Rapids, White Horse Rapids and Halfmile Rapids, and reaches Lac du Bois Dur, where it takes in the right tributary Barron River. The river enters the town of Petawawa, heads under Ontario Highway 17, through the Big Eddy Rapids, under the Canadian Pacific Railway main line, and empties into Black Bay on the Ottawa River.

[A]: 2


[Q]: Question: At what age did Sonny Perdue take office as the Governor of Georgia? Passage 1:While the first game imitated popular Spaghetti Western film soundtracks, the second game aimed to become more unique. Jackson estimated that he changed the music about four times throughout development, from extreme experimentation to classic Western sounds, ultimately blending to make "something different". Pavlovich felt that in order to find an effective result, they had to "push it almost until you break it, and then you swing back". To avoid imitating the bell used in Spaghetti Western soundtracks, Jackson instead used a mandolin used by the Wrecking Crew. The music team found reference points in Willie Nelson's album Teatro (1998) and the soundtrack for the 1971 film The Hired Hand. Session guitarist Matt Sweeney took inspiration from segments of other music—such as the insistent drums in the work of Ennio Morricone—without being derivative. While researching for the game's score, Jackson found that Morricone's work—particularly on Sergio Leone's Dollars Trilogy—was already a departure from typical Western music of the time, instead featuring sounds popular at the time such as "psychedelic guitars, lots of noises", so Jackson felt that he could also take such creative liberties with Red Dead Redemption 2. Similarly, he was even more influenced by Masaru Sato's score on Akira Kurosawa's film Yojimbo (1961), which he felt focused on emotion rather than trying to replicate the sound of feudal Japan, the film's setting.
 Passage 2:Bullock served as the 46th Governor of Georgia from 1868 to 1871 during Reconstruction and was the first Republican governor of Georgia. After Georgia ratified the Fourteenth Amendment to the Constitution, the Omnibus Act declared that states were entitled to representation in Congress as one of the states of the Union. Georgia again lost the right to representation in Congress because the General Assembly expelled twenty-eight black members and prevented blacks from voting in the 1868 presidential election (see Original 33). In response to an appeal from Bullock, Georgia was again placed under military rule as part of the Georgia Act of December 22, 1869. This made Bullock a hated political figure. After various allegations of scandal and ridicule, in 1871 he was obliged by the Ku Klux Klan to resign the governorship, and felt it prudent to leave the state. He was succeeded by Republican State Senate president Benjamin Conley, who served as Governor for the two remaining months of the term to which Bullock had been elected. Conley was succeeded by James M. Smith, a Democrat, and no Republican would serve as governor of Georgia again until Sonny Perdue in 2003.
 Passage 3:Christ Church was built between 1855 and 1857 to a design by the London architect Henry Martin. It was built as a chapel for Lancaster Grammar School and the local workhouse. The church was paid for and endowed by Samuel Gregson, a local industrialist and MP. In 1889 a south aisle was added, designed by the local architects Paley and Austin. It provided 152 seats, and cost about £1,000. In 1894–95 a west baptistry was added by the same practice, then known as Paley, Austin and Paley. The same practice (by now Austin and Paley) converted the organ chamber into the Storey chapel, the organ having been moved into the south transept. In 1919 a war memorial was installed in the churchyard. It was in Derbyshire stone, high, and cost £400. This was designed by Henry Paley, then trading as Austin, Paley and Austin.

[A]: 2


[Q]: Question: How long did Spaulding coach for UCLA? Passage 1:The upper part of the watershed is constituted of Norra Järvafältet, an open-air area characterized by moraine ridges covered with forests separated by water meadows and tilled fields. While some 20 hectares of the surrounding area is used for pasture, the stream is bordered by deciduous plants such as Alder and Birch and Bulrush can be found in non-shadowed patches. Some 2,5 kilometres from its origin, the stream passes down in a culvert under a traffic route (Akallavägen) and the Barkarby Airport before merging with the stream Djupanbäcken. This part of the catchment area contains a motocross track, a golf driving range, a closed dump, and receives stormwater from the E18 traffic route. Thereafter, the stream flows some 4 km in the valley separating the suburbs Akalla-Hjulsta and Tensta-Rinkeby and where are several rural structures including an ecological farm (Hästa Gård), eight allotment-gardens, and some minor overgrown wetlands. East of the valley the river is crossed by a second traffic route (Kymlingelänken) before flowing 2,5 km through an open grassland to reach a railway and the E4 traffic route, water from the latter treated in a local cleaning plant. The last 1.4 km passes more allotment-gardens and the gardens of the Ulriksdal Palace before jumping into Edsviken through a low dam.
 Passage 2:The Burmese Way to Socialism (; also known as the Burmese Road to Socialism) refers to the ideology of the socialist government in Burma, from 1962 to 1988, when the 1962 coup d'état was led by Ne Win and the military to remove U Nu from power. More specifically, the Burmese Way to Socialism is an economic treatise written in April 1962 by the Revolutionary Council, shortly after the coup, as a blueprint for economic development, reducing foreign influence in Burma and increasing the role of the military. The military coup led by Ne Win and the Revolutionary Council in 1962 was done under the pretext of economic, religious and political crises in the country, particularly the issue of federalism and the right of Burmese states to secede from the Union.
 Passage 3:The 1938 UCLA Bruins football team represented the University of California, Los Angeles (UCLA) in the 1938 college football season. Coached by William H. Spaulding, the Bruins finished the season with a 7–4–1 record and made their first postseason appearance in a bowl game. The Pineapple Bowl featured the Bruins playing the on January 2, 1939, in Honolulu. The Bruins season offense scored 217 points while the defense allowed 106 points. George Pfeiffer and Hal Hirshon served as Co-Captains of the team. Center John Ryland was selected to the PCC First-Team All Coast and drafted by the Cleveland Rams of the National Football League (NFL) in 1939. The team also featured future Baseball Hall of Famer Jackie Robinson, Hollywood actor Woody Strode, Football Hall of Famer Kenny Washington. and Bill Overlin.

[A]:
3