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 Q]: 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
[EX A]: b

[EX Q]: Question: Which of the three emperors who Ji served lived longest? Passage:Jiang Ji (died 18 May 249), courtesy name Zitong, was an official and military general of the state of Cao Wei during the Three Kingdoms period of China. Born in the late Eastern Han dynasty, Jiang Ji started his career as a low-level official in his native Yang Province before becoming a subordinate of Cao Cao, the warlord who controlled the central government towards the end of the Eastern Han dynasty. After the end of the Eastern Han dynasty, he served in the state of Cao Wei through the reigns of the first three emperors Cao Pi, Cao Rui and Cao Fang and held various appointments in the military before rising to Grand Commandant, one of the top positions in the central government. During his service in Wei, he was known for being candid in giving advice to the emperor on various issues, including consolidating power, halting labour-intensive construction projects, and officials' abuses of power. In February 249, he joined the regent Sima Yi in staging a successful coup d'etat against his co-regent Cao Shuang, but died from illness a few months later.
Links: a. Cao Pi b. Cao Shuang c. Courtesy name d. Incident at the Gaoping Tombs
[EX A]: a

[EX Q]: Question: In what states did John Marshall serve in the American Revolution? Passage:After the 1775 Battles of Lexington and Concord, Thomas and John Marshall volunteered for service in the 3rd Virginia Regiment. In 1776, Marshall became a lieutenant in the Eleventh Virginia Regiment of the Continental Army. During the American Revolutionary War, he served in several battles, including the Battle of Brandywine, and endured the winter at Valley Forge. After he was furloughed in 1780, Marshall began attending the College of William and Mary. Marshall read law under the famous Chancellor George Wythe at the College of William and Mary, and he was admitted to the state bar in 1780. After briefly rejoining the Continental Army, Marshall won election to the Virginia House of Delegates in early 1782.
Links: a. Battles of Lexington and Concord b. George Wythe c. Battle of Brandywine d. Continental Army
[EX A]:
c