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.

Input: Consider 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 Russian–Jewish 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

Output: b


Input: Consider Input: Question: Have any of the original members of Rage Against the Machine ever divorced? Passage:Audioslave's history dates back to October 18, 2000, when Rage Against the Machine's lead vocalist Zack de la Rocha announced he was leaving the band, citing a breakdown in its "decision-making process". This led to the breakup of Rage Against the Machine, but the remaining three members of the band—Tim Commerford, Tom Morello, and Brad Wilk—decided to stay together and announced plans to continue with a new vocalist. Several vocalists jammed with the three, including B-Real of Cypress Hill, but they did not want another rapper or anybody who sounded like de la Rocha. Contrary to popular belief, Layne Staley of Alice in Chains neither auditioned nor was asked to join the new project. Tom Morello denied this claim on his Twitter account in 2015. Music producer and friend Rick Rubin suggested that they play with Chris Cornell of Soundgarden. Rubin also persuaded the three of them to go into group therapy with performance coach Phil Towle after the breakup. Rubin was confident that with the right new voice, Rage Against the Machine had the potential to become a better band; he believed "it could turn into a Yardbirds-into-Led Zeppelin scenario." Commerford later credited Rubin for being the catalyst that brought Audioslave together. He called him "the angel at the crossroads" because "if it wasn't for him, I wouldn't be here today."
 Links: a. Rage Against the Machine b. Layne Staley c. Zack de la Rocha d. Tim Commerford

Output: d


Input: Consider Input: Question: Which is the oldest place that Sandford was educated? Passage:Folliott Herbert Sandford, the son of a barrister, was born on 28 October 1906. He was educated at Winchester College and New College, Oxford, where he obtained first-class degrees in Classics and in Law. He joined the Air Ministry as a civil servant in 1930, working as Principal Private Secretary to four Secretaries of State for Air between 1937 and 1940: Viscount Swinton, Sir Kingsley Wood, Sir Samuel Hoare and Sir Archibald Sinclair. In 1941 and 1942, he was attached to RAF Ferry Command in Montreal, Quebec, Canada; from 1942 to 1944, he was the secretary to the office of the Resident Minister for West Africa. He returned to the Air Ministry in 1944, rising from Assistant Under-Secretary of State to become Deputy Under-Secretary of State from 1947 to 1958. He was appointed a Companion of the Order of St Michael and St George (CMG) and a Knight Commander of the Order of the British Empire (KBE) in 1949. He became a Fellow of New College on his appointment as Registrar of the University of Oxford in 1958, succeeding Sir Douglas Veale, and held both positions until retiring in 1972. On his retirement, he was appointed an Honorary Fellow of New College and Wolfson College, and was awarded an honorary doctorate by the university. He was Master of the Skinners' Company from 1975 to 1976. He was twice married: to Gwendoline (née Masters) from 1935 until her death in 1977, and then to Peggy Young (née Odgear) from 1982 until her death in 1984. Sandford died on 5 July 1986. The historian Brian Harrison describes him as "unobtrusively providing expertise and continuity" and a hard worker, but one who "lacked Veale's vision and sense of proportion" and who suffered from having to try to match the standards set for the role by Veale.
 Links: a. New College, Oxford b. Secretary of State for Air c. New College, Oxford d. Fellow


Output: a