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.

Input: Consider Input: Question: What was Michael Caine's first film role when his acting career began in the 1950s? Passage:Michael Caine is an English actor who has appeared in over 130 films and has had multiple television appearances. Caine's acting career began in the 1950s, when he was cast in many small, often uncredited roles in British films. Caine gained recognition as one of the most famous actors of the 1960s through his breakthrough role in the film Zulu (1964). He then portrayed spy Harry Palmer in the films The Ipcress File (1965), Funeral in Berlin (1966) and Billion Dollar Brain (1967). He also had starring roles in The Italian Job and Battle of Britain (both 1969). His role in Sleuth (1972) led him to an Academy Award for Best Actor nomination. Caine has won a Best Supporting Actor Oscar for the films Hannah and Her Sisters (1986) and The Cider House Rules (1999). More recently, Caine has gained a new following through his collaborations with British-American filmmaker Christopher Nolan in the Dark Knight Trilogy films, as well as Inception (2010) and Interstellar (2014).
 Links: a. Michael Caine b. Michael Caine c. Funeral in Berlin (film) d. Inception

Output: a


Input: Consider Input: Question: In what modern day state is the chruch located in? Passage:The neighborhood is just west of the Federal Hill community and commercial district connected by West Hamburg Street, which is along South Charles and Light Streets, and the famous hill itself, which was the site of a celebratory picnic in 1788 after a parade of the various guilds, organizations and military units of old "Baltimore Town" to commemorate the ratification by Maryland of the new Federal Constitution, and later fortified with earthen embankments and large cannons of artillery by Northern troops of the Union Army a month after, during the Civil War to keep a close watch on and control on the Southern-sympathizing citizens of the City who had erupted in April 1861, in a riot attacking passing Massachusetts and Pennsylvania troops from the President Street Station on the east side from Philadelphia and the North, on their way to the nearby (a few blocks away with the Washington tracks running right by the Church) Camden Street Station of the famous Baltimore and Ohio Railroad to defend the National Capital of Washington from the newly seceded Virginians and Confederates.
 Links: a. Federal Hill, Baltimore b. History of Maryland c. History of Maryland d. History of Massachusetts

Output: a


Input: Consider Input: Question: How many emperors succeeded Emperor Gaozu during his dynasty? Passage:Both Sui and Tang empires occupied the same location. In 582, Emperor Wen of the Sui dynasty sited a new region southeast of the much ruined Han Dynasty Chang'an to build his new capital, which he called Daxing (大興, “Great Prosperity”). Daxing was renamed Chang'an in year 618 when the Duke of Tang, Li Yuan, proclaimed himself the Emperor Gaozu of Tang. Chang'an during the Tang dynasty (618–907) was, along with Constantinople (Istanbul) and Baghdad, one of the largest cities in the world. It was a cosmopolitan urban center with considerable foreign populations from other parts of Asia and beyond. This new Chang'an was laid out on a north-south axis in a grid pattern, dividing the enclosure into 108 wards and featuring two large marketplaces, in the east and west respectively. Everyday, administrators of the two marketplaces would beat gong for three hundred times in the morning and evening to signify the start and stop of business. People lived in the wards were not allowed to go outside after curfew. Officials with higher-ranking had the privilege to live closer to the central avenue. Chang'an's layout influenced city planning of several other Asian capitals for many years to come. Chang'an's walled and gated wards were much larger than conventional city blocks seen in modern cities, as the smallest ward had a surface area of 68 acres and the largest ward had a surface area of . The height of the walls enclosing each ward were on average 9 to in height. The Japanese built their ancient capitals, Heijō-kyō (today's Nara) and later Heian-kyō or Kyoto, modelled after Chang'an in a more modest scale yet was never fortified. The modern Kyoto still retains some characteristics of Sui-Tang Chang'an. Similarly, the Korean Silla dynasty modeled their capital of Gyeongju after the Chinese capital. Sanggyeong, one of the five capitals of the state of Balhae, was also laid out like Chang'an.
 Links: a. Tang dynasty b. Baghdad c. Emperor Gaozu of Tang d. Emperor Wen of Sui


Output: c