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: Which road is longer, KY 1319 (Kings Church Road) or KY 155 (Taylorsville Lake Road)? Passage:Kentucky Route 1531 is a rural secondary highway that begins in northeastern Bullitt County and ends in northwestern Shelby County, but the route spends almost all of its length in the city of Louisville in eastern Jefferson County. The highway begins at KY 1319 (Kings Church Road) near Whitfield. KY 1531 heads northwest along Dawson Hill Road then turns northeast onto Routt Road to enter the city of Louisville and Jefferson County. The highway crosses Wheelers Run and Back Run and meets the eastern end of KY 1819 (Brush Run Road) south of the Routt neighborhood of Louisville. KY 1531 follows Sheckels Run to its crossing of Cane Run and reaches KY 155 (Taylorsville Lake Road) south of Fisherville. The highway runs concurrently with KY 155 northwest across Floyds Fork of the Salt River to KY 148 (Taylorsville Road), with which the route heads east through Fisherville and across Floyds Fork again.
Links: a. Kentucky Route 155 b. Louisville, Kentucky c. Fisherville, Louisville d. Concurrency (road)

Ex Output:
a

Ex Input:
Question: Which location now has the largest population, where McCulloch was born or where he died? Passage:McCulloch was born in Bonnybridge, Stirlingshire, Scotland, to Agnes (nee Morrison) and Thomas McCulloch. He left school at an early age to work as a coal miner, and then later enlisted in the British Army. He served in Africa and Europe during World War I, holding the rank of battalion sergeant major, and was both mentioned in despatches and awarded the Military Medal. After the war's end, McCulloch returned to coal mining. He emigrated to Western Australia in 1928, and settled in Kalgoorlie, working as a truck driver and municipal employee. He served as secretary of the local trades hall from 1943 to 1949. McCulloch entered parliament at the 1949 Hannans by-election, caused by the death of David Leahy. He was re-elected at the 1950 and 1953 state elections. He left parliament when his seat was abolished prior to the 1956 election, and died in Perth in March 1971, aged 77. McCulloch had married Agnes Burt Montgomery in 1921, with whom he had two children.
Links: a. British Army b. 1956 Western Australian state election c. Military Medal d. Perth

Ex Output:
d

Ex Input:
Question: Which one of the two cities that United Israel Appeal has offices in, has a larger population? Passage:United Israel Appeal (UIA), a subsidiary of The Jewish Federations of North America (JFNA), is a link between the American Jewish community and the people of Israel. An independent legal entity with 501(c)(3) charity status, and a Board of Directors, United Israel Appeal is responsible for the allocation and oversight of funds raised by United States Jewish federation campaigns on behalf of Israel for use by its operating agent, the Jewish Agency for Israel. It also secures and monitors U.S. grant funds for the immigration and absorption of Jewish refugees and humanitarian migrants to Israel from countries of distress. Partnered with the Jewish Agency for Israel, United Israel Appeal assists American Jews to fulfill their ongoing collective commitment to contribute to and participate in the upbuilding of the State of Israel. United Israel Appeal has offices in New York City and Jerusalem.
Links: a. Jerusalem b. 501(c)(3) organization c. Jerusalem d. Jerusalem

Ex Output:
a