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: When did the operation which  the 3251st participated in direct support of the 45th Infantry Division begin? Passage 1: After taking part in both the Louisiana and the Carolina Maneuvers, B Company deployed to Oran, Algeria in November 1942 in support of the Mediterranean Base Section. In June 1944, the 3251st deployed to Italy in support of the 5th Army's Rome/Arno campaign. The 3251st was transferred to the 7th Army and remained under its command for the rest of the war. The 3251st participated in Operation Dragoon in direct support of the 45th Infantry Division under the command of the 240th Quartermaster Battalion and then supported the divisions of the 7th Army as they fought their way across France into Germany. The 3251st returned to the United States through the Newport News Port of Embarcation aboard the AP-116 General Meigs on 13 October 1945.
 Passage 2:Heavy snow fell in the Sierra Nevada and Cascade mountains from three storms. The heaviest snow occurred in the mountains south of Lake Tahoe, with Kirkwood Mountain Resort receiving of snow. Sierra-at-Tahoe and Heavenly Ski Resort both received up to of snow. Snow depths of at least were widely reported. The snow was combined with wind gusts exceeding , creating blizzard and white-out conditions in the Sierra Nevada. The highest reported wind gust was on Ward Mountain. Widespread reports of 3–6 inches of rain were received, and at the height of the storm approximately 2 million people were without power in California. About 3,000 people in Orange County, California were forced to evacuate their homes because of mudslide concerns in areas that had recently been burned in wildfires. These storms continued through the Intermountain West and into the Rocky Mountains. Heavy snow of 2–4 feet occurred in the San Juan Mountains of Colorado, with a maximum of reported at the Silverton Mountain Resort. Six snowmobilers who were stranded by the storm in southern Colorado found shelter in a cabin. However, 3 people were still missing; one hiker in the San Bernardino Mountains in southern California, and two skiers in Colorado near Wolf Creek Pass. At least three people were confirmed killed in the storm. A woman died when she drove her car across a flooded road in Chino, California, one person was killed by a falling branch in Sacramento, and person was killed by a falling tree in Central Point, Oregon. Two bodies discovered in Sacramento near a homeless camp were also being investigated as possibly weather-related. In Fernley, Nevada an irrigation ditch burst and flooded 290 homes with up to of water; the cold weather then caused the water to freeze. In southeastern Utah, nine people were killed and 20 injured after a charter bus returning from a ski trip in Telluride, Colorado ran off the road north of Mexican Hat. However, it was unknown if slick roads were the primary cause of the crash.
 Passage 3:Becker clerked for Judge Donald P. Lay from 1981 through 1983. He then worked at Kirschner, Weinberg & Dempsey (1983–1989), a law firm located in Washington, D.C., and represented members of the American Federation of State County and Municipal Employees and its affiliates, including the Harvard Union of Clerical and Technical Workers. He was a faculty member at UCLA Law School (1989–1994) and has also taught at Georgetown University Law School (1987–1988, 2012), the University of Chicago Law School (1994–95), and Yale Law School (2016, 2017). He has been Associate General Counsel to the AFL-CIO and the Service Employees International Union (SEIU). Throughout his career, he has argued many cases in court, including in front of the Supreme Court of the United States. In 2009, he was a member of the Obama transition team, assisting with the review of the United States Department of Labor.
1