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: How many races had Sellers run the year he replaced Josh Reaume? Passage:Obaika Racing entered competition in 2015. The team signed driver Josh Reaume, who met team owner Victor Obaika while on humanitarian missions in Africa as a child. The 97 team debuted at the Daytona International Speedway in the Xfinity Series season-opening Alert Today Florida 300, with Reaume finishing 23rd. After three races, with one DNQ, Peyton Sellers replaced Reaume. In April 2015, the team secured their first sponsor vacation provider VroomBrands, which is owned by Obaika. VroomBrands wrapped the No. 97 in designs such as a Zebra representing their African safari package (debuted at Richmond International Raceway) and the Cheetah print representing their tours in Asia (debuted at Talladega Superspeedway). At the Winn-Dixie 300 at Talladega, Sellers scored the team's first top-20 finish, finishing 18th despite being involved in a ten-car wreck that sent cars spinning down pit road. Johanna Long replaced Sellers for the U.S. Cellular 250 at Iowa Speedway. After one more start for Sellers at Watkins Glen, the team introduced various drivers for the rest of the season. Dylan Kwasniewski debuted with the team in the Nationwide Children's Hospital at Mid-Ohio Sports Car Course, finishing 34th due to mechanical problems after running in the top 10. Kwasniewski would run the next two races for the team. Parker Kligerman drove the car in the VFW Sport Clips Help a Hero 200 at Darlington Raceway, Mason Mingus in the Furious 7 300 at Chicagoland Speedway, and Ryan Ellis in the Hisense 200 at the Dover International Speedway.
 Links: a. Sport Clips Haircuts VFW 200 b. Dylan Kwasniewski c. Peyton Sellers d. Peyton Sellers
Example Output: c

Example Input: Question: Which team won the NHL's championship trophy the year after Smith's team achieved the feat in 1970? Passage:Smith was originally drafted by the Boston Bruins in the second round (7th overall) in the 1966 NHL Amateur Draft. He played in Boston from 1968–69 to 1971–72. Boston traded him in 1972 to the California Golden Seals of the NHL. He played there until the end of the next season (1972–73) when he left the NHL for the World Hockey Association (WHA) and played for the Minnesota Fighting Saints. In 1975–76 Smith returned to the NHL to play for the St. Louis Blues. He would remain with the Blues until the 1976–77 NHL season when he returned to the Boston Bruins. In 1980 Rick Smith would leave Boston to play one more NHL season split between the Detroit Red Wings (11 games) and the Washington Capitals (40 games). He won the Stanley Cup with the Boston Bruins in 1970. Rick Smith was a steady defenseman, not a scorer but a reliable part of talented teams. An important part of winning Bruin teams who worked hard in every game he participated in.
 Links: a. 1968–69 NHL season b. Detroit Red Wings c. 1971–72 NHL season d. Boston Bruins
Example Output: d

Example Input: Question: How many people graduated from the University of Edinburgh the year Rimington enrolled there? Passage:Rimington was born Stella Whitehouse in South London, England; her family moved from South Norwood to Essex in 1939, due to the danger of living in London during World War II. Her father got a job as chief draughtsman at a steel works in Barrow-in-Furness in Cumbria, and the family moved there and she was educated at Crosslands Convent School after spending some time in Wallasey. When her father got a job in Ilkeston, Derbyshire, the family moved to the Midlands, where Stella attended Nottingham High School for Girls. She spent her last summer of secondary school working as an au pair in Paris, before enrolling at the University of Edinburgh in 1954 to study English. By chance, she met her future husband, John Rimington, whom she had known from Nottingham.
 Links: a. South London b. World War II c. Nottingham Girls' High School d. University of Edinburgh
Example Output:
d