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: During what year or years did the Anglo-Irish Treaty occur? Passage 1:Romano was signed by the Chicago White Sox as an amateur free agent in 1954. In , while playing for the Waterloo White Hawks, Romano hit 9 home runs in nine consecutive games. He accumulated 38 home runs with a .321 batting average and led the Illinois–Indiana–Iowa League with 108 runs scored and 124 runs batted in. His 38 home runs in 1955 set a league record. Romano split the season between the Vancouver Mounties and the Memphis Chickasaws. In , Romano played for the Indianapolis Indians of the American Association. The Indians' manager was former major league All-Star catcher Walker Cooper, who tutored Romano and helped to greatly improve his catching skills. Romano was called up late in the 1958 season, making his major league debut with the Chicago White Sox on September 12, at the age of 23.
 Passage 2:Billboard Magazine rated the song one of the best cuts on Don't Look Back. Greil Marcus rated the song as one of three masterpieces on Don't Look Back, along with "A Man I'll Never Be" and "Used to Bad News." Allmusic critic Tim Sendra described its riff as "killer," saying that it was similar to that in "More Than a Feeling." The New Rolling Stone Album Guide critic Paul Evans felt that "Don't Look Back" was the one song on its album that could "hold its own" on Boston's first album. Ultimate Classic Rock critic Eduardo Rivadavia similarly stated that it "met every expectation set by Boston’s nearly perfect debut." Ultimate Classic Rock critic Michael Gallucci rated it the band's 4th all time best song. AXS contributor Bill Craig similarly rated it Boston's 3rd greatest song, describing it as an "arena rock style sonic blast." Philip Booth of the Lakeland Ledger called it one "of the most-played-by-garage-band rockers of the '70s." Pete Prown and Harvey P. Newquist praised the "layers of guitar harmonies" as well as Barry Goudreau's slide guitar playing and rideout guitar solo. Ottawa Journal critic Mike Voslin rated the song as a live performance highlight.
 Passage 3:After he qualified he travelled to Canada and during World War I he enlisted in the 19th Alberta Dragoons as a private and was commissioned to the Royal Marine Artillery. He had a distinguished military career and was awarded the Distinguished Service Order by the British Government and the Croix de Guerre. He had lost an eye and was badly wounded in both legs during his years at the front. His cousin, Robert Barton, had resigned as a British Officer after the 1916 Easter Rising and was elected as a Sinn Féin Teachta Dála at the 1918 general election for the West Wicklow constituency. His other cousin, Erskine Childers, used his yacht, the Asgard, to transport guns from Germany to Ireland on behalf of the Irish Volunteers. He too was a former British Army Officer that became more sympathetic with the cause of Irish independence after the events of the Rising. Robinson took an active part in the War of Independence in Wicklow. He opposed the Anglo-Irish Treaty and fought on the Republican side in the Civil War. He was present in Annamoe, County Wicklow when his cousin, Erskine, was arrested by Free State Troops and taken to Dublin which would result in his court-martial and execution. Robinson was himself arrested in 1922 and spent forty days on hunger strike during his eighteen months' internment in Mountjoy jail.

A:
3