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.

[Q]: 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
[A]: c


[Q]: Question: Which player that Dolman was dismissed by in his two first-class appearances was the oldest? Passage:Dolman made his debut for Monmouthshire against Devon in the 1922 Minor Counties Championship. He played Minor counties cricket for Monmouthshire from 1922 to 1934, making 52 appearances. After 1934, Monmouthshire didn't enter a team in the Minor Counties Championship. During his career he made two first-class appearances, both for Wales. The first of these was in 1926 when Wales played Ireland, a match in which Dolman took the wicket of Gustavus Kelly in the Irish first-innings and Jim Ganly in their second-innings, while in Wales only innings he scored 11 runs before being dismissed by Gustavus Kelly. His second first-class appearance came in 1928 against the touring West Indians, a match in which he went wicket-less, while he scored 35 runs in Wales first-innings before being dismissed by Snuffy Browne. He also played for the Glamorgan Second XI in 1936.
 Links: a. Gustavus Kelly b. Minor Counties of English and Welsh cricket c. Minor Counties of English and Welsh cricket d. Wales national cricket team
[A]: a


[Q]: Question: Which of the rugby union tours Volley went on played the most matches? Passage:Paul William Volley (born 2 November 1971 in Beckenham, Kent) is an English rugby union player. As an open-side flanker, he played for London Wasps for 16 years. He joined as a 16-year-old from Chinnor. Volley was first called up to the senior England squad by Clive Woodward for the 2000 England rugby union tour of South Africa, and then again for the 2003 England rugby union tour of Australasia. However he was ultimately never capped at this level. He has also been selected for England A on numerous occasions. He has won the Domestic and European competitions with London Wasps. This includes helping them win the Anglo-Welsh Cup in 1999 and 2000; he was a replacement in the 1999 final but started in 2000. After winning both the Zurich Premiership and Heineken Cup with Wasps in 2004, he headed across the Channel to play for Castres Olympique in France. He then returned to play for and captain Wasps' London rivals, Harlequins, and in 2008 signed a 2-year deal to play for RFU Championship side London Scottish.
 Links: a. 2000 England rugby union tour of South Africa b. Anglo-Welsh Cup c. Kent d. Clive Woodward
[A]:
a