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 old was Beloff's husband when he died? 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. Harvard Medical School b. Ernst Chain c. University of Oxford d. Hampstead

Ex Output:
b


Ex Input:
Question: What current countries were part of the Ottoman Empire? Passage:Crimea: The Last Crusade is a panoramic history of the Crimean War of 1853–56. Drawing extensively from Russian, French and Ottoman as well as British archives, it combines military, diplomatic, political and cultural history, examining how the war left a lasting mark on the national consciousness of Britain, France, Russia and Turkey. Figes sets the war in the context of the Eastern Question, the diplomatic and political problems caused by the decay of the Ottoman Empire. In particular, he emphasises the importance of the religious struggle between Russia as the defender of the Orthodox and France as the protector of the Catholics in the Ottoman Empire. He frames the war within a longer history of religious conflict between Christians and Muslims in the Balkans, southern Russia and the Caucasus that continues to this day. Figes stresses the religious motive of the Tsar Nicholas I in his bold decision to go to war, arguing that Nicholas was swayed by the ideas of the Pan-Slavs to invade Moldavia and Wallachia and encourage Slav revolts against the Ottomans, despite his earlier adherence to the Legitimist principles of the Holy Alliance. He also shows how France and Britain were drawn into the war by popular ideas of Russophobia that swept across Europe in the wake of the Revolutions of 1830 and 1848. As one reviewer wrote, Figes shows "how the cold war of the Soviet era froze over fundamental fault lines that had opened up in the 19th century."
 Links: a. Crimean War b. Ottoman Empire c. Catholic Church d. Pan-Slavism

Ex Output:
b


Ex Input:
Question: When was the general under who Zuhayr served as lieutenant commander born? Passage:Zuhayr belonged to the Bali tribe, itself part of the larger Quda'a confederation that was present throughout Syria and the northern Hejaz. He is considered by some Muslim sources, namely Ibn Hajar and al-Suyuti, as a sahabi (companion) of the Islamic prophet Muhammad, while al-Suyuti also places him with the second-generation of Muslims, known as the tabi'un. According to Ibn Hajar, Zuhayr participated in the Muslim conquest of Egypt in 639. He later served as a lieutenant commander in the army of Uqba ibn Nafi during the Muslim conquest of the Maghreb in 670. In that campaign, he played a role in the capture of Sirte and was made its governor. The Arabs established the town of Kairouan in Ifriqiya to garrison their troops and families and when Uqba advanced west of Kairouan, Zuhayr accompanied him. As Uqba campaigned in the region of Sous (in modern-day Morocco), he ordered Zuhayr to return with the majority of the Arab troops to Kairouan to defend the city from an impending Byzantine attack. 
 Links: a. Byzantine Empire b. Uqba ibn Nafi c. Sirte d. Muslim conquest of Egypt

Ex Output:

b


