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 Input:
Question: How many goals did Ryan McGuffie have for Gretna? Passage:He began his career at Rangers, where he made 2 appearances. Walker made his senior league début in a 1–0 win over Motherwell at Fir Park, coming off the bench to replace Hamed Namouchi. Walker had a six-month loan spell at Clyde in which he made his Bully Wee début in a 1–0 victory at Broadwood Stadium against Ross County. During this time, Walker won the SFL young player of the month award for September 2004. After his short-term deal at Broadwood, Walker went to Sweden for a couple of months but decided to come back home. he joined Morton in July 2005. Walker made his Morton début in a 3–2 (AET) Challenge Cup win over Gretna, in which assistant boss at Morton, Derek Collins, and later-to-be teammate Ryan McGuffie played for the opposition. His senior league debut was the following week against Raith Rovers, in which Morton triumphed 2–0 in front of 3,222 fans. He signed a new contract in May 2009, for another year at Morton. Being out of contract in the summer, and struggling for fitness, Walker was loaned to Brechin City for three months in January 2010. Walker suffered a recurrence of a groin injury, where he underwent surgery but remained at Brechin until April. He was released at the end of the 2009–10 season. After his release from Morton, Walker decided to go part-time and was signed up by ex-manager Jim McInally at East Stirlingshire for the 2010–11 season.
 Links: a. Jim McInally b. Derek Collins c. Ryan McGuffie d. Ross County F.C.

Ex Output:
c


Ex Input:
Question: What was the former name of the Blohmn & Voss aircraft division? Passage:Soon after the start of World War II, it was proposed to convert the four prototypes to long-range maritime patrol aircraft. V2 underwent a trial modification. It was fitted with an extended nose section with extensive glazing (like the Heinkel He 111 H-6), defensive armament (a 7.92 mm/.312 in MG 15 machine gun in the nose, twin-beam positions, a ventral cupola, and a powered dorsal turret), a compartment for ordnance in the fuselage, and navigation and military radio equipment. The company had by now been renamed as the Blohm & Voss aircraft division so the converted aircraft was redesignated the BV 142 V2/U1 while the V1 was similarly converted. Both were used operationally from late 1940 and were posted to the Luftwaffes second surveillance Group. This unit was assigned to the operations staff of Luftflotte III in France. However, their performance was disappointing, and after only a few missions they were withdrawn from service in 1942. Aircraft V3 and V4 were used as transport aircraft for the occupation of Denmark and in the Norway campaign with the KGr.z.b.V. 105 (Special combat team) and could transport 30 fully equipped soldiers over 4,000 km (2,490 mi). The ultimate fate of V3 and V4 is unknown. It was later planned to use the V1 and V2 to carry the Henschel GT 1200C guided torpedo, but the plan was cancelled.
 Links: a. Blohm+Voss b. Gun turret c. Cupola d. Gun turret

Ex Output:
a


Ex Input:
Question: Did Enneis and Moreno both attend St. Elizabeth's Hospital? Passage:In Tokyo, he met Rev. Gilbert V. Hartke, O.P., who was touring with Players Incorporated (now National Players) which Hartke had established at Catholic University in Washington, D.C. Murphy subsequently earned a Master's Degree in Speech and Drama at C.U. on the G.I. Bill under Hartke. He acted and did technical work with the Players at St. Michael's Summer Theatre in Winooski, Vermont. He later earned a PhD in Theatre and Psychology on a Ford Foundation Fellowship at the University of Wisconsin–Madison. He was Lighting Director at Starlight Theatre in Kansas City, Missouri for two summers, where he worked with Jeanette MacDonald, Gisèle MacKenzie, Penny Singleton and Charles Nelson Reilly. He was an Assistant Director at NBC-TV Channel 4 in Washington for one summer, where he worked with puppeteer Jim Henson, then a college student. He studied Psychodrama under James Enneis at St. Elizabeth's Hospital in Washington, D.C., and with Jacob L. Moreno at Beacon, New York. 
 Links: a. Jacob L. Moreno b. National Players c. Washington, D.C. d. Psychodrama

Ex Output:

a