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: Where does the route begin that 104 intersects with in Stamford? Passage:Route 104 begins at an intersection with Route 137 in the Bulls Head section of Stamford and heads north, passing by GE Capital, then crossing the Rippowam River, up through North Stamford and onto New York state line. About north of the river, Route 104 crosses under the Merritt Parkway (Route 15) at Exit 34 into the North Stamford section of the city. After another , Route 104 crosses over the Mianus River, through the Long Ridge section of the city, as it heads towards the New York state line. The road ends in the town of Pound Ridge, New York and continues as Westchester County Road 3. Route 104 is known as Long Ridge Road throughout its length and is classified as a principal arterial road, carrying traffic volumes of as much as 30,000 vehicles per day, particularly near the Merritt Parkway interchange. Route 104 is four lanes wide from Route 137 to Route 15, and two lanes wide north of Route 15.
Links: a. North Stamford b. Connecticut Route 137 c. Merritt Parkway d. Mianus River
Example Output: b

Example Input: Question: Where was Sale's first husband born? Passage:On June 21, 2012, Simpson married Canadian figure skater Jamie Sale, 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 Sale have one daughter, Samantha Rae Simpson, born on July 7, 2013. Through this marriage, Simpson is also a stepfather to Sale'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)
Example Output: a

Example Input: Question: Which of the tournaments that Serena Williams' played in 1997 in the qualifying round is the oldest? Passage:Williams played the qualifying rounds of her first three tournaments of 1997, in the first round of State Farm Evert Cup, third round of Acura Classic and second round of European Indoor Championships, to Alexia Dechaume-Balleret, Magui Serna and Dominique Monami respectively. She then qualified for her first tour main draw when she defeated Magui Serna in the final round of qualifying at the Kremlin Cup, but lost in the first round of the main draw to compatriot Kimberly Po. She then entered the Ameritech Cup as a wild card and ranked no. 304. She earned her first main draw win against then world no. 27 Elena Likhovtseva in straight sets. In the next round, she upset world no. 7 Mary Pierce in two tight sets, with Williams failing to serve it out in the twelfth game of the second set but eventually won in a tie-break. In the quarterfinal she upset world no. 4 Monica Seles easing through the second and third sets, recording her first career wins over top 10 players and becoming the lowest-ranked player in the open era to defeat two top 10 opponents in one tournament. She ultimately lost in the semifinals to world no. 5 Lindsay Davenport 4-6 in both sets.
Links: a. Monica Seles b. Ameritech Cup c. Indian Wells Masters d. Zurich Open
Example Output:
c