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: Which of the defensive lines that I Canadian Corps directly attacked was the longest? Passage 1:However, the 1st Canadian Infantry Division took part in the Italian Campaign, participating in the Moro River Campaign and the Battle of Ortona in December 1943 as part of British V Corps and it was not until the fourth Battle of Monte Cassino (Operation Diadem) in May 1944 that I Canadian Corps fought its first battle as a corps. The Eighth Army held the Corps in reserve until after the Gustav defences in the Liri valley had been broken and then brought it forward to assault successfully the next defensive line, the Hitler Line, shortly before the Allied capture of Rome in early June. Having taken part in the Allies' northward advance to Florence, the Corps then took part in Operation Olive, the assault on the Gothic Line in September 1944 before being transported during January–February 1945 in Operation Goldflake to rejoin the rest of the First Canadian Army in Belgium and the Netherlands. There the Corps participated in the campaign to complete the liberation of the Netherlands. On May 6, 1945 at Wageningen, Lieutenant-General Foulkes received the final surrender by Colonel General Johannes Blaskowitz of all remaining German forces still active in the Netherlands. The Corps was deactivated on July 17, 1945 as part of general demobilization.
 Passage 2:Wellsville is located in the region of the Eastern Triple Divide, the cusp of the three major watersheds in the eastern United States. The Genesee River flows through the center of the village and the town of Wellsville, north to Rochester and Lake Ontario and then on to the St. Lawrence River and the Atlantic Ocean. In the Wellsville school district, in Alma, southwest of Wellsville, Honeoye Creek flows west to Oswayo Creek and then the Allegheny River, then to the Ohio and the Mississippi River, eventually to the Gulf of Mexico. And just over Jericho Hill to the northeast of Wellsville in the town of Alfred, the water flows to the east down the Canacadea Creek valley to the Canisteo River, eventually to the Susquehanna River and on to the Atlantic Ocean.
 Passage 3:Battling the Dolphins for the division lead, the Patriots erased a 13–6 gap with a Brady touchdown pass to David Givens in the third. The Dolphins marched down field late in the fourth; during this drive a Ricky Williams first down run was protested by the Patriots who felt Williams' knee touched the dirt infield at Pro Player Stadium, but the challenge was denied. The Dolphins attempted a 35-yard field goal at the two-minute warning, but the kick was blocked by Richard Seymour. The Dolphins smothered the Patriots' final drive attempt (the decisive play came when former Patriot Terrell Buckley stopped Kevin Faulk for a four-yard loss and the game went to overtime. Controversy ensued on the coin flip for overtime; referee Gerald Austin used a silver dollar; the coin came up Lady Columbia (which is "heads" on a silver dollar) but Patriot captains Brady and Seymour protested that it came up "tails." The Dolphins drove downfield but missed another 35-yard field goal try, in part because Olindo Mare couldn't plant his foot on the infield dirt, which was still in place because of the Florida Marlins' run towards their 2003 World Series victory; after forcing a Patriots punt Jay Fiedler was hit by Tedy Bruschi and lobbed a 60-yard pass picked off at the Patriots 18-yard line by Tyrone Poole. Brady then ended the game with a spectacular 82-yard touchdown strike to Troy Brown and a 19–13 final.
1