In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.

Input: Consider Input: Question: How deep were their heavy infantry formations normally? Passage:Having recovered from their losses at Trebia (218 BC) and Lake Trasimene (217 BC), the Romans decided to engage Hannibal at Cannae, with approximately 86,000 Roman and allied troops. They massed their heavy infantry in a deeper formation than usual, while Hannibal used the double envelopment tactic and surrounded his enemy, trapping the majority of the Roman army, who were then slaughtered. The loss of life on the Roman side was one of the most lethal single day's fighting in history; Adrian Goldsworthy equates the death toll at Cannae to "the massed slaughter of the British Army on the first day of the Somme offensive in 1916." Only about 15,000 Romans, most of whom were from the garrisons of the camps and had not taken part in the battle, escaped death. Following the defeat, Capua and several other Italian city-states defected from the Roman Republic to Carthage.
 Links: a. Cannae b. Adrian Goldsworthy c. Heavy infantry d. City-state

Output: c


Input: Consider Input: Question: Who was the founder of the school where Constant Mews studied for his doctorate? Passage:Mews attended the University of Auckland and completed BA and MA degrees there in History. He carried out doctoral study at the University of Oxford, followed by five years (1980–1985) teaching British civilisation at the Universite de Paris III, while pursuing studies in medieval thought (focusing on Peter Abelard) in connection with Jean Jolivet, at the École pratique des hautes études en sciences religieuses. This was followed by two years as a Leverhulme research fellow at the University of Sheffield on editing the writings of Peter Abelard. Mews took up a position at Monash University as Lecturer in the Department of History in July 1987. He became involved in developing the Centre for Studies in Religion and Theology and in promoting studies in religion more generally, with a strong interest in interfaith work. He has had spells of study at the Institute for Advanced Study, Princeton, in 1990 and 2000, and has also again taught in Paris, at the École pratique des hautes études (Ve section) and in the École des hautes études en sciences sociales.
 Links: a. Princeton, New Jersey b. University of Sorbonne Nouvelle Paris 3 c. University of Oxford d. École pratique des hautes études

Output: c


Input: Consider Input: Question: What is the home ground of the team Milicic played for in the 2000/01 season? Passage:He played for a variety of sides in two stints in the National Soccer League. The first stint was played almost entirely for Sydney United, for whom he played as a junior, and which culminated in playing in their runner-up 1996/97 side. After that season he moved to NAC Breda in the Netherlands, and after 2 seasons there went to Croatia's NK Rijeka, where he was the club's top scorer in 2000/01 with 10 goals. On his return to the NSL in season 2001/02, he rejoined Sydney United for a brief stay, before moving to city rival Sydney Olympic during the same season. He would spend the rest of the season and the next playing there, including scoring the only goal of the 2001/02 Grand Final against Perth Glory. In the final he was awarded the Joe Marston Medal, delivering Sydney Olympic their second NSL title, as well as playing in the runner up side the following season against Perth Glory.
 Links: a. Sydney United 58 FC b. Perth Glory FC c. HNK Rijeka d. NAC Breda


Output: c