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 many casualties had the Japanese Army suffered by the time Vincent was sent to Tokyo? Passage:Born the son of Colonel Arthur Hare Vincent and Elizabeth Rose Manson and educated at Wellington College and the Royal Military Academy, Woolwich, Vincent was commissioned into the Royal Artillery as a second lieutenant on 24 July 1891. He was promoted to lieutenant on 24 July 1894 and to captain on 13 February 1900. He served with the China Expeditionary Force in late 1900 and then in the Second Boer War in South Africa. Following the end of the war, Vincent left Point Natal for India on the SS Ionian in October 1902 with other officers and men of the J Battery Royal Horse Artillery, and after arrival in Bombay, was stationed in Meerut, Bengal Presidency. In 1903, Vincent was sent to Tokyo to learn Japanese: he served as British military attache with the Japanese Army during the Russo-Japanese War and, from 1 March 1904, was attached to the 2nd Division of the First Japanese Army in Manchuria.
Links: a. Imperial Japanese Army b. Second lieutenant c. Second Boer War d. Royal Military Academy, Woolwich

Ex Output:
a

Ex Input:
Question: Was the population of Canberra greater than that of Adelaide the year Burbidge was appointed assistant agronomist at Waite Agricultural Research Institute? Passage:In 1943 she was appointed assistant agronomist at the Waite Agricultural Research Institute in Adelaide, where she started working on native pasture species for arid and semi-arid South Australia. She was appointed to the new position of systematic botanist at the CSIRO Division of Plant Industry, Canberra in 1946. At CSIRO she worked on organising and extending the herbarium, first as a research scientist and then as curator and was responsible for laying the foundations of the Herbarium Australiense, later the National Australian Herbarium. She wrote Key to the South Australian species of Eucalyptus L'Her. but had not specialised on the genus. Her professional interest in systemic botany was reflected by her tenure as secretary of the systematic botany committee of the Australian and New Zealand Association for the Advancement of Science from 1948 to 1952. She also edited Australasian Herbarium News until her until 1953, when she took a years leave to be the Australian Botanical Liaison Officer at the Kew Gardens herbarium. While at Kew she photographed and indexed type specimens of Australian plants and made microfilm copies of Robert Brown's notebooks for Australian herbaria.
Links: a. Royal Botanic Gardens, Kew b. Eucalyptus c. Canberra d. CSIRO

Ex Output:
c

Ex Input:
Question: How many times has the artist whose version of "Canadian Sunset" reached #1 in 1956 had a #1 single? Passage:Gimbel was born on November 16, 1927 in Brooklyn, New York, the son of Lottie (Nass) and businessman Morris Gimbel. His parents were Austrian Jewish immigrants. Gimbel was self-taught in music and following initial employment with music publisher David Blum, progressed to become a contract songwriter with Edwin H. Morris Music. Small successes and moderate fame came as a result of lively novelty songs "Ricochet", which was popularized in a 1953 recording by Teresa Brewer from which was developed the 1954 Judy Canova film Ricochet Romance, and "A Whale of a Tale", sung by Kirk Douglas in another 1954 production, Disney's 20,000 Leagues Under the Sea. Greater success was earned with Dean Martin's recording of "Sway", which reached #6 on the UK Singles Chart, followed by his first big success, Andy Williams' rendition of "Canadian Sunset", which scored to #1 in 1956.
Links: a. Andy Williams b. Andy Williams c. UK Singles Chart d. Andy Williams

Ex Output:
a