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 many years did Nick Van Exel play for the Nuggets? Passage:The 1998–99 NBA season was the Nuggets' 23rd season in the National Basketball Association, and 32nd season as a franchise. During the offseason, the Nuggets acquired Nick Van Exel from the Los Angeles Lakers, and second-year guard Chauncey Billups from the Toronto Raptors. Despite the return of Antonio McDyess, who was re-signed by the team after one season with the Phoenix Suns, the Nuggets continued to struggle under new head coach Mike D'Antoni losing eight of their first nine games. Top draft pick Raef LaFrentz out of Kansas was out for the remainder of the season with a knee injury after playing just twelve games. The Nuggets finished the lockout shortened season sixth in the Midwest Division with a 14–36 record. This was also their final season playing at McNichols Sports Arena. Following the season, second-year forward Danny Fortson and Eric Williams were both traded to the Boston Celtics, and D'Antoni was fired as coach.
 Links: a. Nick Van Exel b. Raef LaFrentz c. 1997–98 Los Angeles Lakers season d. Antonio McDyess

Ex Output:
a


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: Which Zodiacs sign that Pluto rules appears earlier on the calendar? Passage:Pluto was discovered by Clyde W. Tombaugh on 18 February 1930. When Pluto was first discovered, it was initially known as Planet X. Astronomers had been searching for another planet past Neptune, hoping to solve the dilemma of its rather irregular orbit. It is now known, however, that the perceived irregular orbit of Neptune was the result of a mathematical error because Pluto, being a planetoid smaller than our own Moon, was far too small to affect any type of gravitational pull on the gas giant. Pluto is very much a 20th-century planet and refers to the two world wars, and weapons of mass destruction, nuclear power, and a desire to totally control the world we live in. It is a planet that reveals to us the extremes we are capable of if we do not set necessary boundaries in our lives. This planet governs the compulsions in our life: those things we are compelled to do but know we should not, such as murder, rape, drug addiction, and even overeating if it is of such an extent that it threatens our health. Pluto is considered to be a higher octave of Mars, and this is evidenced by the fact that both planets co-rule Scorpio. Pluto, circling the Sun in 248 years, has a rather elliptical orbit, which means that it stays in the sign it rules, Scorpio, for a mere 9 years, and the sign of its fall, Taurus for 30! With this in mind, some astrologers believe that Pluto should rightfully rule Taurus, but for the time being it still rules Scorpio. As other trans-Neptunian object planets are discovered, however, this placement just might have to be reconsidered.
 Links: a. Scorpius b. Murder c. Rape d. Rape

Ex Output:

a