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 long did the state entity that  Macedonia was the political heart of  last? Passage:In 1014, after decades of war, the Byzantine Emperor Basil II scored a decisive victory over the Bulgarian Emperor Samuil in the battle of Kleidion. Samuil died of a heart attack on 6 October 1014 and the Byzantines took the opportunity to penetrate deep into Macedonia, the political heart of the Bulgarian Empire, and seized a number of important cities (Bitola, Prilep, Voden, Maglen). After the new Bulgarian Emperor Ivan Vladislav, who in 1015 assassinated Samuil's son and heir Gavril Radomir, had unsuccessfully tried to make an agreement with Basil II, he organized the defense of the country. The Bulgarians led by the Emperor, Krakra of Pernik and Ivats managed to return a number of towns and castles. The Byzantines were defeated in the battle of Bitola (September 1015) and at the siege of Pernik (summer of 1016).
 Links: a. Basil II b. Ivan Vladislav of Bulgaria c. First Bulgarian Empire d. Prilep

Ex Output:
c


Ex Input:
Question: How many year does the person who appoints governors in India serve per term? Passage:In the Republic of India, a governor is the constitutional head of each of the twenty-eight states. The governor is appointed by the President of India for a term of five years, and holds office at the President's pleasure. The governor is de jure head of the state government; all its executive actions are taken in the governor's name. However, the governor must act on the advice of the popularly elected council of ministers, headed by the chief minister, which thus holds de facto executive authority at the state-level. The Constitution of India also empowers the governor to act upon his or her own discretion, such as the ability to appoint or dismiss a ministry, recommend President's rule, or reserve bills for the President's assent. Over the years, the exercise of these discretionary powers have given rise to conflict between the elected chief minister and the union government–appointed governor.
 Links: a. Government of India b. President of India c. Ministry (collective executive) d. Constitution of India

Ex Output:
b


Ex Input:
Question: What states did Waller receive doctorate degrees from, either earned or honorary? Passage:Waller was born on July 17, 1846. His parents were David Jewett Waller Sr. and Julia Ellmaker Waller. He was their fifth child. When young he was educated at Bloomsburg. After that he went to a classical school in a local Primitive Methodist Episcopal Church. When Waller was fourteen he was sent to a school run by Revered Gayley in the community of Media. In 1861, at the age of 15, he went to Williams College's preparatory department. However, due to sickness his education ceased for three years. In 1867, he was among the first people to graduate from the Bloomsburg Literary Institute. Waller went to Lafayette College in the autumn of 1867. He did well there and graduated from there with a Bachelor of Arts degree in 1870 and a Master of Arts degree in 1873. From 1870 to 1871 he trained to be and served as a tutor in Latin and Greek. While at Lafayette College he also won the Fowler Prize, a prize of $30 granted for excellence in English philology. Waller attended the Princeton Theological Seminary from 1871 to 1872, then switched to the Union Theological Seminary and graduated from that in 1874. He received an honorary Ph.D from Lafayette College in 1880 and received a Doctor of Divinity degree from Ursinus College in 1892. Juniata College granted Waller an honorary Doctor of Laws degree in 1934.
 Links: a. David Jewett Waller Sr. b. Latin c. Doctor of Philosophy d. Media, Pennsylvania

Ex Output:

c