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: Where was Sale's first husband born? Passage:On June 21, 2012, Simpson married Canadian figure skater Jamie Salé, whom he had "known for years from the Edmonton skating scene". They had been paired as partners in late 2009 for the first season of the CBC show Battle of the Blades, which they won. Simpson and Salé have one daughter, Samantha Rae Simpson, born on July 7, 2013. Through this marriage, Simpson is also a stepfather to Salé's son Jesse Pelletier (born September 30, 2007), from her first marriage to skating partner David Pelletier. He also has three children from a previous marriage, including son Dillon, who was drafted by the Edmonton Oilers in the 4th round of the 2011 NHL Entry Draft and is currently a defenseman for the Bakersfield Condors.
 Links: a. David Pelletier b. Canadian Broadcasting Corporation c. David Pelletier d. Battle of the Blades (season 1)

Ex Output:
a


Ex Input:
Question: How many years after Wish You Were Here was released was The Wall released? Passage:Storm Thorgerson, who had done the majority of album covers for Pink Floyd, did the Echoes art which features recursive windows in an infinite regression as a nod to his own cover for 1969's Ummagumma, and the objects on each landscape refer to the Pink Floyd discography. For instance, there's the man on fire from Wish You Were Here, another wearing the Delicate Sound of Thunder lightbulb suit, dolls of the Atom Heart Mother cow and the Animals pig, a bike and both a brick wall and the hammers from The Wall. Eventually Thorgerson opted to make two images, with another used for the back cover. To create the idea on a photograph, various walls - which had varied measurements and angles to ensure that "nothing seemed to fit other than by eye through the lens." - were built and put in a country landscape in Sussex. Actors, props and fittings were set in and between those walls. The original design was one of two sketches submitted for Dream Theater's 1997 album Falling into Infinity, with the original being framed and hanging in the home of former Dream Theater drummer Mike Portnoy and is pointed out by Portnoy in his Hudson Music instructional drum DVD In Constant Motion.
 Links: a. Wish You Were Here (Pink Floyd album) b. Sussex c. Ummagumma d. Atom Heart Mother

Ex Output:
a


Ex Input:
Question: Of the women who were involved with Luis romantically, which one is the most educated? Passage:Dominguín was also a socialite, having friends like Pablo Picasso and romances with the American actress Ava Gardner and the fashion model China Machado. In 1955, he married actress Lucia Bosé, who gave birth to his son Miguel Bosé, a Grammy-award winning singer. He also occasionally appeared in films, predominantly playing himself in cameo roles, in movies such as Around the World in 80 Days (1956), Testament of Orpheus (1960), and The Picasso Summer (1969). In 1959, he and his brother-in-law, Antonio Ordóñez, engaged in a bullfighting rivalry that was chronicled by Ernest Hemingway in his book, The Dangerous Summer. Ordóñez won. In 1964 he was a mystery guest on the US TV show What's My Line?.
 Links: a. Testament of Orpheus b. China Machado c. What's My Line? d. Ava Gardner

Ex Output:

d