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.

Example Input: Question: Who did Bruce Herschenohn run against in his primary? Passage:In 1992 four-term incumbent Democratic Senator Alan Cranston retired, creating an open seat contest. In what was billed as the "Year of the Woman", Boxer beat fellow Rep. Mel Levine and Lieutenant Governor Leo McCarthy in the Democratic primary, winning 44% of the vote. In the general election, Boxer defeated Republican Bruce Herschensohn, a conservative television political commentator from Los Angeles, by 4.9%. A last-minute revelation that Herschensohn had attended a strip club at least partially affected the outcome. In 1998, she won a second term, beating sitting California State Treasurer Matt Fong by 10.1% of the vote. After facing no primary opposition in the 2004 election, Boxer defeated GOP candidate Bill Jones, the former California Secretary of State, by 20%. In 2010, Boxer defeated GOP candidate Carly Fiorina, former chief executive officer of Hewlett-Packard, by 10%.
 Links: a. 1992 United States Senate election in California b. Bruce Herschensohn c. Bill Jones (California politician) d. Leo T. McCarthy
Example Output: b

Example Input: Question: Was the writer of the spec script of Bad Times at the El Royale born before the two leads who were cast for the film on August 23, 2017? Passage:On March 8, 2017, it was announced that 20th Century Fox had bought the spec script Bad Times at the El Royale, written by Drew Goddard, who would also direct and produce the film. On August 23, 2017, Chris Hemsworth and Jeff Bridges were cast in the 1960s-set film, to play two among the several characters who collide at the El Royale hotel, near California's Lake Tahoe. That same day, it was also reported that Tom Holland had passed on a role, and that Beyoncé was being courted for the role of a Black vocalist. It was also revealed that main roles in the ensemble would include a vacuum cleaner salesman, two female criminals, a male cult leader, and a desk clerk. Later in August 2017, newcomer Cailee Spaeny was added to the cast to play an impressionable Southern girl brought to the hotel, while Cynthia Erivo was cast as the Black singer who finds herself in the wrong place at the wrong time. In January 2018, Dakota Johnson and Russell Crowe joined the cast (though Crowe did not appear in the film). In February 2018, Jon Hamm, Nick Offerman, and Mark O'Brien joined the cast, and in May 2018, Lewis Pullman was also confirmed for a role.
 Links: a. Drew Goddard b. Lake Tahoe c. Cynthia Erivo d. Jon Hamm
Example Output: a

Example Input: Question: What is the name of the person that married the artist who performed at the 1970 Palermo Pop Festival? Passage:Helped by his association with The Guardian, Cannon was able to contribute more substantial articles to the Los Angeles Times and the Chicago Sun-Times, and to underground magazines such as Creem. He wrote the 1970 documentary film London Rock, focusing on the UK's counterculture movement. He recalls that, together with Rolling Stone journalists David Dalton and Jonathan Cott, he joined Granada Television documentary-makers such as Jo Durden-Smith, John Sheppard and Michael Darlow in devising "prime-time networked shows designed as anthems of the revolution". Among these late-1960s projects, he says that the Johnny Cash at San Quentin TV special was his idea, and he "share[s] credit" for the ideas behind the concert films The Doors Are Open and The Stones in the Park. He also directed the film of Frank Zappa's performance at the 1970 Palermo Pop Festival, for RAI, Italy's national public broadcaster.
 Links: a. At San Quentin b. The Stones in the Park c. Los Angeles Times d. Frank Zappa
Example Output:
d