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: Is the college where Heinrich studied older than the college where he was a professor? Passage 1:In 2014, Ivanovic enjoyed a resurgence and attained a number of career-best achievements. She began the year by winning her first title in three years at the ASB Classic, defeating former world No. 1 Venus Williams in three sets before upsetting the reigning world No. 1 Serena Williams en route to her second Australian Open quarterfinal where she lost in three sets to thirtieth seed, Eugenie Bouchard. During the clay court season, Ivanovic reached her third final of the year at the Porsche Tennis Grand Prix, losing to two-time defending champion Maria Sharapova; the quarterfinals of the Mutua Madrid Open and the semi-finals of the Internazionali BNL d'Italia, defeating Sharapova for the first time since 2007 en route but was ultimately upset by Lucie Šafářová in the third round of the French Open. She rebounded by winning her first career singles title on grass at the Aegon Classic before reaching the final of the Western & Southern Open (her first top tier Premier final since 2009) and thus returned to the top ten of the WTA rankings for the first time in five years as a result. In September, Ivanovic reached her sixth singles final of the year (a new career-best) at the Toray Pan Pacific Open, where she defeated Caroline Wozniacki to claim her fourth title of the season, the most titles she won in a single season.
 Passage 2:William Joseph Denny was born in Adelaide, South Australia, on 6 December 1872, one of three children of Thomas Joseph Denny, a publican, and his wife Annie ( Dwyer). He attended Christian Brothers College, Adelaide, then worked as a weather clerk at the General Post Office, Adelaide under the Postmaster General, Sir Charles Todd. According to a contemporary source, in 1893 he became the editor of the Catholic The Southern Cross newspaper, which published news about and for the Catholic community of South Australia. A more recent source states he commenced as editor of The Southern Cross in 1896. He replaced James O'Loghlin, who later became a United Labor Party (ULP) senator for South Australia. Denny was a councillor of the Adelaide City Council from 1898, representing Grey Ward. During his early twenties he was active in the literary and debating societies of Adelaide, was Chairman of the Christian Brothers Old Collegians Association, and captain of two city rowing clubs. He unsuccessfully contested the two-member seat of West Adelaide in the 1899 South Australian colonial election as a ULP candidate, gaining 27.7 per cent of the vote.
 Passage 3:Georg Heinrich August Ewald (16 November 1803 – 4 May 1875) was a German orientalist, Protestant theologian, and Biblical exegete. He studied at the University of Göttingen. In 1827 he became extraordinary professor there, in 1831 ordinary professor of theology, and in 1835 professor of oriental languages. In 1837, as a member of the Göttingen Seven, he lost his position at Göttingen on account of his protest against King Ernst August's abrogation of the liberal constitution, and became professor of theology at the University of Tübingen. In 1848, he returned to his old position at Göttingen. When Hanover was annexed by Prussia in 1866, Ewald became a defender of the rights of the ex-king. Among his chief works are: Complete Course on the Hebrew Language (), The Poetical Books of the Old Testament (), History of the People of Israel (), and Antiquities of the People of Israel (). Ewald represented the city of Hanover as a member of the Guelph faction in the North German and German Diets.
3