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: Who was the leader of the shadow ministry? Passage 1:In June 1974, Guilfoyle was appointed to Billy Snedden's shadow ministry as the Coalition's spokesperson for the media. She supported Malcolm Fraser in the March 1975 leadership spill, and when he was successful she was moved to the higher-profile education portfolio. Following the dismissal of the Whitlam Government in November 1975, Guilfoyle was appointed Minister for Education in Fraser's caretaker ministry. This made her the first woman to hold a cabinet-level ministerial portfolio; is the first woman to be appointed to a Cabinet portfolio following her appointment as Minister for Education in the first Fraser government in 1975 she was the second woman appointed to cabinet, after Enid Lyons, and the second to be given a ministerial portfolio, after Annabelle Rankin. In December 1975, following the Coalition's victory at the 1975 election, Guilfoyle was appointed Minister for Social Security in the second Fraser Ministry. Her new portfolio was initially placed outside of cabinet, but she was reinstated in July 1976 after Ivor Greenwood's retirement. According to Fraser, she "contributed significantly to cabinet debates ... she could be totally relied on and she could think for herself she wasn't a captive to the bureaucracy".
Passage 2:Early confrontations between the Sasanian Empire of Shapur II with the nomadic hordes from Central Asia called the "Chionites" were described by Ammianus Marcellinus: he reports that in 356 CE, Shapur II was taking his winter quarters on his eastern borders, "repelling the hostilities of the bordering tribes" of the Chionites and the Euseni ("Euseni" is usually amended to "Cuseni", meaning the Kushans), finally making a treaty of alliance with the Chionites and the Gelani, "the most warlike and indefatigable of all tribes", in 358 CE. After concluding this alliance, the Chionites (probably of the Kidarites tribe) under their King Grumbates accompanied Shapur II in the war against the Romans, especially at the Siege of Amida in 359 CE. Victories of the Xionites during their campaigns in the Eastern Caspian lands were also witnesses and described by Ammianus Marcellinus.
Passage 3:Thanjavur was successfully conquered in 1674 by Ekoji I (167584), the Maratha feudatory of the sultan of Bijapur and half-brother of Shivaji (1627/30-80) of the Bhonsle dynasty. Ekoji founded the Thanjavur Maratha kingdom which ruled Thanjavur till 1855. The Marathas exercised their sovereignty over Thanjavur throughout the last quarter of the 17th and the whole of the 18th century. The Maratha rulers patronized Carnatic music. In 1787, Amar Singh, the regent of Thanjavur, deposed the minor Raja, his nephew Serfoji II (178793) and captured the throne. Serfoji II was restored in 1799 with the assistance of the British, who induced him to relinquish the administration of the kingdom and left him in charge of Thanjavur fort and surrounding areas. The kingdom was eventually absorbed into British India in 1855 by the Doctrine of Lapse when Shivaji II (183255), the last Thanjavur Maratha ruler, died without a legitimate male heir. The British referred to the city as Tanjore in their records. Five years after its annexation, the British replaced Negapatam (modern-day Nagapattinam) with Thanjavur as the seat of the district administration. Under the British, Thanjavur emerged as an important regional centre. The 1871 India census recorded a population of 52,171, making Thanjavur the third largest city in the Madras Presidency. After India's independence, Thanjavur continued as the district headquarters.
1