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 old was the person who influenced Abani to join the revolutionary movement when they met? Passage:In 1914, Mukherji met Rash Behari Bose and joined the revolutionary movement. In 1915, he was sent to Japan to acquire weapons for the revolutionaries. According to British intelligence reports, he was active in the Hindu–German conspiracy. In September 1915, while on his return journey to India, he was arrested in Singapore and incarcerated at the Fort Canning prison there, where he remained until he escaped in the autumn of 1917. The exact details of his escape are unclear. Mukherji managed to reach Java in the Dutch East Indies, where he stayed until the end of 1919, living under the name of Dar Shaheer. In Java, he was in contact with Indonesian and Dutch revolutionaries and became a communist. He also travelled to Amsterdam and back. In Amsterdam, he met S.J. Rutgers, who recommended him as a delegate to the Second Congress of the Communist International.
 Links: a. Rash Behari Bose b. Singapore c. S. J. Rutgers d. Communism
Example Output: a

Example Input: Question: Was Chevon Walker born in the Caribbeans?  Passage:Chevon Walker (born May 9, 1987 in Montego Bay, Jamaica) is a former professional Canadian football running back and kick returner for the Winnipeg Blue Bombers of the Canadian Football League. He played NCAA football for the Sioux Falls Cougars. He played two years of his career as a professional football player in the Canadian Football League for the Hamilton Tiger-Cats. In 2014, the Ottawa Redblacks selected him in the expansion draft. He started the 2015 season with the Ottawa Redblacks before he was released on August 28, 2015. On September 1, 2015, it was announced that Walker had signed with the Winnipeg Blue Bombers. Chevon Walker has over 1000 rushing yards and seven touchdowns in three years of professional play.
 Links: a. Hamilton Tiger-Cats b. Winnipeg Blue Bombers c. Canadian Football League d. Montego Bay
Example Output: d

Example Input: Question: Was Madduma Bandara still alive when Ehelepola Nilame died? Passage:Ehelepola Nilame (1773 – 1829) was a courtier of the Kingdom of Kandy. He was the first Adigar (a role which combined the powers of a prime minister and a chief justice) from 1811 to 1814 under the reign King Sri Vikrama Rajasinha. He was appointed by the king as the Disawe (local governor) of Sabaragamuva. In 1814 when the king believed he failed to suppress an uprising in Sabaragamuva he sent his forces to capture Ehelepola, who fled from Ratnapura to the British-occupied port of Kalutara. The king retaliated by brutally executing his wife, Kumarihamy and his four children, Loku Bandara, Madduma Bandara, Tikiri Manike and Dingiri Menike. Ehelepola then aided the British in launching an invasion of the Kingdom of Kandy and was instrumental in the Kandyan Convention that followed in March 1815, which led to the annexing of Kingdom of Kandy as part of the British Empire. Ehelepola offered his Walauwa to the Maha Sangha.
 Links: a. Madduma Bandara Ehelapola b. Kingdom of Kandy c. Kandyan Convention d. Kandyan Convention
Example Output:
a