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 was the Hudson's Bay Company headquartered when it controlled the Vancouver Island area? Passage:The Colony of Vancouver Island had been created in 1849 to bolster British claims to the whole island and the adjacent Gulf Islands, and to provide a North Pacific home port for the Royal Navy at Esquimalt. By the mid-1850s, the Island Colony's non-indigenous population was around 800 people; a mix of mostly British, French-Canadian, Metis, Hawaiians, but with handfuls of Iroquoians and Cree in the employ of the fur company, and a few Belgian and French Oblate priests (thousands of First Nations died due to the smallpox epidemic). Three years earlier, the Treaty of Washington had established the boundary between British North America and the United States of America west of the Rocky Mountains along the 49th parallel. The mainland area of present-day British Columbia, Canada was an unorganised territory under British sovereignty until 1858. The region was under the de facto administration of the Hudson's Bay Company, and its regional chief executive, James Douglas, who also happened to be Governor of Vancouver Island. The region was informally given the name New Caledonia, after the fur-trading district which covered the central and northern interior of the mainland west of the Rockies.
 Links: a. Gulf Islands b. Hudson's Bay Company c. Colony of Vancouver Island d. Rocky Mountains
Example Output: b

Example Input: Question: What was Sergei Ratnikov's previous employment before he was hired as JK Tallinna Kalev's manager? Passage:In January 2010, Sergei Ratnikov was appointed as manager. Tallinna Kalev won the 2011 Esiliiga were promoted back to the Meistriliiga. The club finished the 2012 season in ninth place, but avoided being relegated by defeating Tarvas 3–1 on aggregate in the relegation play-offs. In December 2012, Frank Bernhardt was appointed as manager. Tallinna Kalev finished the 2013 season in eighth place. In January 2014, former Estonia national team manager Tarmo Rüütli took over as manager. Rüütli subsequently left in March 2014 and Sergei Zamogilnõi took over as manager. Following a disappointing 2014 season, where Tallinna Kalev finished in 10th place and were relegated to the Esiliiga once again, Zamogilnõi was replaced by Marko Pärnpuu. Tallinna Kalev returned to the Meistriliiga after finishing the 2017 season as runners-up. In November 2017, Pärnupuu was replaced by Argo Arbeiter. The team finished the 2018 season in eighth place, after which Arbeiter left and Aleksandr Dmitrijev took over as manager.
 Links: a. Tarmo Rüütli b. Argo Arbeiter c. Sergei Ratnikov d. Frank Bernhardt
Example Output: c

Example Input: Question: Which movie that Branigan was associated with grossed more at the box office? Passage:Seeing her greatest level of success in the 1980s, Branigan's other singles included the Top 10 hit "Solitaire" (1983), the U.S. AC chart number one "How Am I Supposed to Live Without You" (1983), the Australian No. 2 hit "Ti amo" (1984), and "The Power of Love" (1987). Her most successful album was 1984's platinum-selling Self Control. She also contributed songs to motion picture and television soundtracks, including the Grammy and Academy Award-winning Flashdance soundtrack (1983), and the Ghostbusters soundtrack (1984). In 1985, she won the Tokyo Music Festival with the song "The Lucky One". Her chart success began to wane as the decade closed and after her last two albums Laura Branigan (1990) and Over My Heart (1993) garnered little attention, she generally retired from public life for the rest of the 1990s. She began returning to performing in the early 2000s, most notably appearing as Janis Joplin in the off-Broadway musical Love, Janis. As she was recording new music and preparing a comeback to the music industry, she died at her home in 2004 from a previously undiagnosed cerebral aneurysm. 
 Links: a. Flashdance b. Academy Awards c. Adult Contemporary (chart) d. Flashdance
Example Output:
a