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.

Example Input: Question: How long is the body of water that Whittier Narrows is part of? Passage:During the expedition, Father Crespi 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 Arcangel-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 Crespi's location on the Rio Porciuncula (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 Jose 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
Example Output: d

Example Input: Question: When was the college founded where Beloff earned a degree in chemistry? Passage:Anne Beloff was born in 1921 in Hampstead to Simon Beloff and Marie Katzin. Her parents were of RussianJewish background, and her siblings included the historian Max Beloff, Baron Beloff, the psychologist John Beloff, the journalist Nora Beloff, and the politician Renee Soskin. She earned a degree in chemistry from University College London in 1942 before completing a PhD in the biochemistry of skin burns with Rudolph Peters at the University of Oxford. She visited Harvard Medical School in 1946 to perform research and returned to the UK in 1948. In the same year she married Ernst Boris Chain, a biochemist who had won the Nobel Prize in Physiology or Medicine in 1945, and moved with him to Rome.
Links: a. Max Beloff, Baron Beloff b. University College London c. Ernst Chain d. Nora Beloff
Example Output: b

Example Input: Question: When was the genre of Red Dead Redemption 2 first created? Passage:While the first game imitated popular Spaghetti Western film soundtracks, the second game aimed to become more unique. Jackson estimated that he changed the music about four times throughout development, from extreme experimentation to classic Western sounds, ultimately blending to make "something different". Pavlovich felt that in order to find an effective result, they had to "push it almost until you break it, and then you swing back". To avoid imitating the bell used in Spaghetti Western soundtracks, Jackson instead used a mandolin used by the Wrecking Crew. The music team found reference points in Willie Nelson's album Teatro (1998) and the soundtrack for the 1971 film The Hired Hand. Session guitarist Matt Sweeney took inspiration from segments of other musicsuch as the insistent drums in the work of Ennio Morriconewithout being derivative. While researching for the game's score, Jackson found that Morricone's workparticularly on Sergio Leone's Dollars Trilogywas already a departure from typical Western music of the time, instead featuring sounds popular at the time such as "psychedelic guitars, lots of noises", so Jackson felt that he could also take such creative liberties with Red Dead Redemption 2. Similarly, he was even more influenced by Masaru Sato's score on Akira Kurosawa's film Yojimbo (1961), which he felt focused on emotion rather than trying to replicate the sound of feudal Japan, the film's setting.
Links: a. Spaghetti Western b. Western music (North America) c. Matt Sweeney d. Mandolin
Example Output:
a