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.

Ex Input:
Question: Who did Zwar costar with in Foxtel's 2016 drama? Passage:Adam also co-wrote and co-starred in the movie Rats and Cats, which premiered to sell-out audiences and critical acclaim at the 2006 Melbourne International Film Festival and went on to screen at the SXSW Film Festival in 2009. From 2006 to 2010, he was head writer on the AFI Awards screened on the Nine Network, working alongside hosts Geoffrey Rush and Stephen Curry. Zwar's other acting credits include playing Martin Gero in Series 1 of 2 of the Network Ten crime drama Rush, as well as the SBS series Carla Cametti PD, the ABC television movie Valentine's Day, the crime drama Underbelly for Channel Nine. In 2016, Zwar joined the main cast of Foxtel's drama Top of the Lake.
Links: a. Top of the Lake b. Valentine's Day (2007 film) c. Network 10 d. Underbelly (TV series)

Ex Output:
a

Ex 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

Ex Output:
c

Ex Input:
Question: In what state was the team that he spent nine years as a minor league manager? Passage:Gassaway won 153 games in minor league baseball, with a career high of 17 victories in 1944 for the Milwaukee Brewers of the top-level American Association. He was called up to the Cubs and made two late-season starts but was ineffective. The 1945 season the last year of the World War II player shortage was Gassaway's only complete year in the Majors. Pitching for the last-place Philadelphia Athletics, he worked in 24 games pitched (including 11 starting assignments) and 118 innings, and posted a 47 record with an earned run average of 3.74 and four complete games. He split 1946 between the MLB Indians and the Triple-A Oakland Oaks, working in 13 games for Cleveland (with six more starts) from July through the end of the season. He then returned to the minors for the remainder of his active career, and spent nine years as a minor league manager, working mostly for the Philadelphia Phillies' organization.
Links: a. Philadelphia Phillies b. Earned run average c. Games pitched d. Starting pitcher

Ex Output:
a