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: Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin? Passage: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lôduring July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
. Links: a. Allies of World War II b. Wesel c. Operation Market Garden d. Air Support.
Example solution: c
Example explanation: The passage describes the 704th's actions during Operation Market Garden.

Problem: Question: What state were the educational institutions that Morison attended located in? Passage:Born in New Bedford, Massachusetts, he was the son of John Hopkins Morison, a Unitarian minister. At age 14, he entered Phillips Exeter Academy and graduated by age 16. He went on to Harvard College where he was a classmate of philosopher John Fiske. Morison received a Bachelor of Arts degree in 1863 when he was just 20. After a brief break he attended Harvard Law School where he would receive a Bachelor of Laws degree by 1866 and was admitted to the New York Bar. In 1867, with only general mathematics training and an aptitude for mechanics, he abandoned the practice of law and pursued a career as a civil engineer and builder of bridges. He would apprentice under the supervision of engineer Octave Chanute during the construction of the first bridge to cross the Missouri River, the swing-span Kansas City Bridge.
 Links: a. Missouri River b. Mechanics c. Phillips Exeter Academy d. Mathematics

Solution: c