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: Did the highest scoring fighter ace have any siblings? Passage:After a short rest, the 90th continued across the Moselle River to take Mainz, 22 March, and crossed the rivers Rhine, the Main, and the Werra in rapid succession. Pursuit continued to the Czech border, 18 April 1945, and into the Sudetes mountain range. The division was en route to Prague when they came upon the remaining 1500 emaciated prisoners left behind by the SS at Flossenbürg concentration camp. Today, a memorial wall at the former camp honors the 90th as the liberators of Flossenbürg concentration camp. A week later, word came that the war in Europe ended on 8 May 1945. On that same day, Erich Hartmann, the highest-scoring fighter ace in history, along with a squadron of the elite Jagdgeschwader 52 fighter wing (the highest-scoring fighter wing in history), surrendered to the 90th.
 Links: a. Main (river) b. Jagdgeschwader 52 c. Prague d. Erich Hartmann

Ex Output:
d


Ex Input:
Question: What is the current population of the country where Baker served during the Second Boer War?  Passage:Born on 13 December 1863, Arthur Slade Baker was educated at Bedford School. He received his first commission as a second lieutenant in the Royal Artillery in 1882, was promoted to the rank of lieutenant on 1 October 1882, to the rank of captain on 1 October 1891, and to the rank of major on 1 April 1900. He served during the Second Boer War in South Africa between 1900 and 1901. In June 1902 he was appointed as Inspector, General Stores division, of the Army Ordnance Department, serving at Woolwich until 1905. He was Deputy Assistant Director at the War Office between 1908 and 1912. He was promoted to the rank of Lieutenant Colonel in 1912. He served during the First World War, and was promoted to the rank of Brigadier General.
 Links: a. South Africa b. South Africa c. Woolwich d. South Africa

Ex Output:
a


Ex Input:
Question: When was the award for which Shorff won for his film debut first established? Passage:In June 2012, Shroff was signed by producer Sajid Nadiadwala to make his film debut with Sabbir Khan's action romantic comedy Heropanti, which was produced under Nadiadwala's banner Nadiadwala Grandson Entertainment. In preparation for the role, he underwent flexibility training under Ziley Mawai. Released in 2014, Heropanti garnered unfavourable reactions from critics but emerged as a commercial success with earnings of worldwide. For his performance, Shroff received mainly mixed to positive reviews, with critics primarily praising dancing skills and ability to perform onerous stunts. Taran Adarsh of Bollywood Hungama appreciated his performance, saying "Tiger registers an impact in several sequences" and that he "scores brownie points in action and stunts". Adarsh also added that "for a first-timer, he exudes supreme confidence", whereas Subhash K. Jha praised him for his versatility, saying "he emotes, he dances and yes, he can fight". However, Sweta Kaushal of Hindustan Times disagreed, calling his "dialogues forced" and said "his expressions do nothing in a given situation". In spite of terming his performance "a little unconvincing", Kaushal called his action sequences "admirable" and said he's a "great dancer". Furthermore, Anupama Chopra, though noting that he has star-like qualities and "very solid screen presence", called his dialogue delivery "off". Shroff's portrayal fetched him the Screen Award for Best Male Debut and the IIFA Award for Star Debut of the Year – Male in addition to a Best Male Debut nomination at the 60th Filmfare Awards.
 Links: a. Sajid Nadiadwala b. Screen Award for Best Male Debut c. Screen Award for Best Male Debut d. Screen Award for Best Male Debut

Ex Output:

b