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: How long is the body of water that Whittier Narrows is part of? Passage:During the expedition, Father Crespí observed a location along the river that would be good for a settlement or mission. However, in 1771, Father Serra instead commissioned two missionaries to establish the Mission San Gabriel Arcángel-San Gabriel Mission near the present day Whittier Narrows section of the San Gabriel River. The missionaries encountered resistance from the Tongva to their attempts to resettle the Natives on the mission. The mission encountered further trouble in 1776 when a flood damaged the mission, convincing the missionaries to move and rebuild the mission on a higher and more defensible location: its present site in San Gabriel. The first Spanish governor of Las Californias, Felipe de Neve had, as well, recommended to Viceroy Bucareli Father Crespí's location on the Río Porciúncula (Los Angeles River) for a mission. Instead, in 1781, King Charles III mandated that a pueblo be built on the site instead, which would be the second town in Alta California, after San José de Guadalupe in 1777. The monarch, disregarding the production and trade roles of the missions, saw a greater need for secular pueblos to be established as the centers of agriculture and commerce to supply the crown's ever-growing military presence in "Nueva California." The priests at the missions ignored the royal mandate and continued their ranching, trading and production of tallow, soap, hides, and beef, often in competition with new pueblo ventures.
 Links: a. Los Angeles River b. History of San Jose, California c. Los Angeles River d. Whittier Narrows

Ex Output:
d


Ex Input:
Question: When was the gunnery school David moved to in 1932 built? Passage:He was assigned as a midshipman on 1 May 1929 after finishing top of his class in five subjects. In 1930 he was assigned to the battleship Marlborough, part of the Third Battle Squadron; and the following year to the battlecruiser in September 1931 on which he served with fellow midshipman, and future vice admiral, Peter Gretton. While serving on the ship, Wanklyn was promoted to acting sub-lieutenant (the equivalent of an army second lieutenant) on 1 January 1932. Soon afterwards he moved to the naval gunnery school - HMS Excellent - at Whale Island, Portsmouth to learn more about naval navigation to qualify for his second ring at the rank of lieutenant. In February 1933 he moved to HMS Dolphin and was promoted to lieutenant on 1 February 1933.
 Links: a. Excellent b. Battlecruiser c. Vice admiral d. Whale Island, Hampshire

Ex Output:
a


Ex Input:
Question: How many season did the American TV series that Arthur English appeared in run for? Passage:He had more likeable roles in two British children's TV series: The Ghosts of Motley Hall, which ran from 1976 to 1978 on ITV (produced by Granada Television), and as "Slugger" in Follyfoot, which ran from 1971 to 1973, also on ITV (produced by Yorkshire Television). He was in several other films and Everyday Maths (1978), a British TV schools programme starring Jack Wild as English's grandson. In 1978 he was the subject in This Is Your Life, while in May 1983 he was a guest on Desert Island Discs with Roy Plomley. Also in 1983 he played Frosch in Die Fliedermaus with English National Opera at the London Coliseum. In 1985 he appeared in an episode of the American TV series Magnum, P.I..
 Links: a. Magnum, P.I. b. English National Opera c. ITV (TV network) d. London Coliseum

Ex Output:

a