Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Question: Who is Thomas Becket? Passage 1:Franklin Harper Elmore (October 15, 1799May 29, 1850) was a United States Representative and Senator. Born in Laurens District, the son of John Archer Elmore, he graduated from the South Carolina College at Columbia in 1819, studied law, was admitted to the bar in 1821 and commenced practice in Walterboro. He was solicitor for the southern circuit from 1822 to 1836, a colonel on the staff of the Governor from 1824 to 1826, and was elected as a State Rights Democrat to the Twenty-fourth Congress to fill the vacancy caused by the resignation of James H. Hammond. Elmore was reelected to the Twenty-fifth Congress and served from December 10, 1836, to March 4, 1839. From 1839 to 1850 he was president of the Bank of the State of South Carolina 1839-1850; he declined appointment by President James Polk as Minister to Great Britain. Elmore was appointed as a Democrat to the U.S. Senate to fill the vacancy caused by the death of John C. Calhoun and served from April 11, 1850, until his own death in Washington, D.C. in 1850. He was interred in the First Presbyterian Churchyard in Columbia.
 Passage 2:The University of Kent's coat of arms was granted by the College of Arms in September 1967. The white horse of Kent is taken from the arms of the County of Kent (and can also be seen on the Flag of Kent). The three Cornish choughs, originally belonging to the arms of Thomas Becket, were taken from the arms of the City of Canterbury. The Crest depicts the West Gate of Canterbury with a symbolic flow of water, presumably the Great Stour, below it. Two golden Bishops' Crosiers in the shape of a St. Andrews Cross are shown in front of it. The supporters – lions with the sterns of golden ships – are taken from the arms of the Cinque Ports.
 Passage 3:Foulkes was educated at Bedford Modern School, and was commissioned into the Royal Engineers as a second lieutenant on 27 February 1894, followed by promotion to lieutenant on 27 February 1897. He served in Sierra Leone 1898–99 (later known as the Hut Tax War), for which he received the East and West Africa Medal. After the outbreak of the Second Boer War in October 1899, he was appointed on the Staff of the army in South Africa, and took part in a number of engagements and operations. He became Assistant Commissioner for the Anglo-French Boundary Commission in the East of Niger in late 1902, with the local rank of captain. After taking part in the Kano-Sokoto expedition which brought the Emirs in Nigeria under British control in 1903, he became Commander of the Ordnance Survey of Scotland in 1904. He was a member of the bronze medal-winning team for the field hockey in the 1908 Summer Olympics. He went on to be Commander of 31st (Fortress) Company in Ceylon in 1909 and Commander of 'L' Company at the Royal Engineers Depot in Chatham in 1913.

Student:
2