Detailed Instructions: 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.
Problem:Question: How old was Charles' maternal grandfather when his father was born? Passage 1:Merivale was the second son of John Herman Merivale (1770–1844) and Louisa Heath Drury, daughter of Joseph Drury, headmaster of Harrow. He was educated at Harrow School under George Butler from 1818 to 1824, where his chief schoolfriends were Charles Wordsworth and Richard Chenevix Trench. He took part in the Eton versus Harrow cricket match in 1824. In 1824 he was offered a post in the Indian civil service, and went for a short time to Haileybury College, where he did well in Oriental languages. Deciding against an Indian career, he went up to St John's College, Cambridge in 1826. Among other distinctions he came out as fourth classic in 1830, and in 1833 was elected fellow of St John's. He was a member of the Apostles' Club, his fellow-members including Tennyson, A. H. Hallam, Monckton Milnes, W. H. Thompson, Trench and James Spedding. Merivale was the main protagonist on the Cambridge side in instigating the Oxford and Cambridge Boat Race held at Henley on Thames in 1829. He rowed at number four in the Cambridge boat in the race which Oxford won.
 Passage 2:In August 2012, ABC ordered a pilot for a show called S.H.I.E.L.D., to be written by Joss Whedon, Jed Whedon, and Maurissa Tancharoen, and directed by Joss Whedon. On April 6, 2013, ABC announced that the show would be titled Marvel's Agents of S.H.I.E.L.D., and it was officially ordered to series on May 10, 2013. Jed Whedon, Tancharoen and Jeffrey Bell act as the series' showrunners, while Clark Gregg reprises his role from the films as Phil Coulson. The series was renewed for a second season on May 8, 2014, a third on May 7, 2015, a fourth on March 3, 2016, and a fifth on May 11, 2017, a sixth on May 14, 2018, and a seventh season on November 16, 2018; the sixth and seventh seasons both consist of 13 episodes. The seventh season will serve as the series' final season.
 Passage 3:The first Archbishop of Uppsala was Stephen, a Cistercian monk from the celebrated Alvastra Abbey. Cardinal William of Sabina came as papal legate to Sweden during the archiepiscopate of Jarler, a Dominican friar (1235–55). The legate had been commissioned, among other things, to establish cathedral chapters wherever such were lacking, and to grant them the exclusive right of electing the bishops. Another important matter which the legate had been ordered to carry out was the enforcement of the law of clerical celibacy. At a provincial synod held at Skänninge in 1248 under the presidency of the cardinal, the rules as to celibacy were made more severe. The pious and energetic Archbishop Jarler and his successor Laurentius (1257–67), a Franciscan, constantly strove to elevate the clergy and to enforce the law of celibacy. A century later Saint Bridget (d. 1373), laboured zealously for the enforcement of the same law.

Solution:
1