Given the task definition and input, reply with output. 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 was the university where William Alexander Graham graduated from established? Passage 1:James Graham (January 7, 1793 September 25, 1851) a Congressional Representative from North Carolina; born in Lincoln County, North Carolina, January 7, 1793; brother of William Alexander Graham; pursued classical studies and graduated from the University of North Carolina at Chapel Hill in 1814; studied law; was admitted to the bar in 1818 and commenced practice in Rutherford County, North Carolina; member of the State house of representatives in 1822, 1823, 1824, 1828, and 1829; elected as a National Republican to the Twenty-third Congress (March 4, 1833 March 3, 1835); presented credentials as a National Republican Member-elect to the Twenty-fourth Congress and served from March 4, 1835, to March 29, 1836, when the seat was declared vacant; subsequently elected as a National Republican to the same Congress; reelected as a Whig to the Twenty-fifth, Twenty-sixth, and Twenty-seventh Congresses and served from December 5, 1836, to March 3, 1843; chairman, Committee on Public Expenditures (Twenty-seventh Congress); unsuccessful candidate for reelection in 1842 to the Twenty-eighth Congress; elected as a Whig to the Twenty-ninth Congress (March 4, 1845 March 3, 1847); was not a candidate for renomination in 1846; engaged in agricultural pursuits near Rutherfordton, North Carolina, where he died September 25, 1851.
Passage 2:William Jefferson Clinton (born William Jefferson Blythe III; August 19, 1946) is an American politician who served as the 42nd president of the United States from 1993 to 2001. Prior to his presidency, he served as governor of Arkansas (19791981 and 19831992) and as attorney general of Arkansas (19771979). A member of the Democratic Party, Clinton was known as a New Democrat, and many of his policies reflected a centrist "Third Way" political philosophy. He is the husband of former Secretary of State and former U.S. Senator Hillary Clinton. In 1998, Clinton was impeached by the House of Representatives. The impeachment was based on accusations that Clinton committed perjury and obstruction of justice for the purpose of concealing his affair with Monica Lewinsky, a 22-year-old White House intern. He was acquitted by the Senate and completed his term in office. Clinton is notable as one of only two U.S. presidents (following Andrew Johnson 130 years earlier) to have been impeached.
Passage 3:He is employed as editor at the "Moldovan Book" (1974) and "Artistic Literature" (1977-1982), literary secretary at the National Theater (1982-1983) and Lyric Theater "Alexei Mateevici"(1986-1987). Since May 1987 he has been elected secretary of the Steering Committee of the Writers' Union of Moldova and president since September 1991 until 2010. He was deputy of the people of the USSR in Gorbachev's thaw (1989-1990) and then deputy in the Parliament of the Republic of Moldova (1999-2001). In parallel, he is the head of the Department of Classical Literature of the Institute of History and Literary Theory of the Academy of Sciences of Moldova, he obtained his Ph.D. in Philology in 1998, with the thesis "Eminescu, poet of Being" (conductor, Eugen Simion) and teaches at the "Ion Creanga" Pedagogical University in Chisinau. In 1991 he became an honorary member of the Romanian Academy, a member of the Academy of Sciences of Moldova (1992), a member of the Writers' Union of Romania (since 1994 elected and member of the board of directors), member of PEN-club, member of the Targovistei Writers Society (2005), vice-president of the Cultural League for the Unity of Romanians Abroad, an honorary citizen of Craiova (in 2005, alongside Grigore Vieru, Vasile Tarateanu). He is the director of the magazine "Life of Basarabia" and in the collections of publications "Critical copybooks", "Romanian Life", founding president of the "Mihai Eminescu" International Academic Center in Chisinau.
1