instruction:
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.
question:
Question: Which of the regiments that Ellwood served in was the largest? Passage:Ellwood graduated from Duntroon in 1990 and was commissioned into the Royal Australian Infantry Corps. His early career included postings as a platoon commander in the 2nd/4th Battalion, Royal Australian Regiment and as an instructor in field training and tactics at Duntroon, before he was seconded to the British Army from 1998 for a two-year exchange with the Irish Guards, then stationed in Germany. During the secondment he deployed as part of the NATO intervention in the Kosovo War in 1999, serving as second-in-command of an armoured infantry company in the King's Royal Hussars Battle Group. For his service in Kosovo, Ellwood was awarded a Commander British Forces Commendation. He returned to Australia as a company commander and operations officer in the 5th/7th Battalion, Royal Australian Regiment (5/7RAR). Ellwood commanded B Company on operations in East Timor from October 1999 to April 2000, when 5/7RAR deployed with the International Force East Timor.
Links: a. 2nd/4th Battalion, Royal Australian Regiment b. Kosovo War c. 2nd/4th Battalion, Royal Australian Regiment d. King's Royal Hussars
answer:
a

question:
Question: How long had The Observer been operating as a going concern the year Harrisson started working there as a radio critic? Passage:During the Second World War Harrisson continued directing Mass-Observation and was radio critic for The Observer from May 1942 until June 1944. For much of this time he was in the army and gave up reviewing on leaving the UK. After service in the ranks he was commissioned as a second lieutenant in the Reconnaissance Corps on 21 November 1943. He had been recruited (some sources say by a confusion of names, despite his apparent suitability) for a plan to use the native peoples of Borneo against the Japanese. He was attached to Z Special Unit (also known as Z Force), part of the Services Reconnaissance Department (SRD: a branch of the combined Allied Intelligence Bureau in the South West Pacific theatre). On 25 March 1945, he was parachuted with seven Z Force operatives from a Consolidated Liberator onto a high plateau occupied by the Kelabit people. An autobiographical account of this operation (SEMUT I, one of four SEMUT operations in the area) is given in World Within (Cresset Press, 1959); there are also reports not always flattering from some of his comrades. His efforts to rescue stranded American airmen shot down over Borneo are a central part of "The Airmen and the Headhunters", an episode of the PBS television series Secrets of the Dead. The recommendation for his Distinguished Service Order which was gazetted on 6 March 1947 (and dated 2 November 1946) describes how from his insertion until 15 August 1945 the forces under his command protected the flank of Allied advances, and caused severe disruption to Japanese operations.
Links: a. Z Special Unit b. The Observer c. Kelabit people d. Second lieutenant
answer:
b

question:
Question: What cities had Chen taught in before she took the job as the Malcolm K. Brachman Professor of Economics at Yale? Passage:Chen is currently the Malcolm K. Brachman Professor of Economics at Yale University. She previously taught at the London School of Economics, New York University, and the University of Chicago. After graduation from the University of California, San Diego, she became an assistant professor in economics at University of Chicago, a lecturer and reader at London School of Economics from 1999 to 2002. Thereafter, she joined New York University as an associate professor and she was promoted to professor of economics in 2005. In 2007, she became a professor of economics at Yale University and she is currently a Malcolm K. Brachman Professor of Economics at Yale University. Chen is an International Fellow of the Centre for Microdata Methods and Practice, an elected fellow of the Econometric Society, and an elected fellow of the Journal of Econometrics.
Links: a. Yale University b. London School of Economics c. London School of Economics d. University of Chicago
answer:
b