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: In which country is the seaport city of Porto located where the wine received its name "port"? Passage:Port is produced from grapes grown and processed in the demarcated Douro region. The wine produced is then fortified by the addition of a neutral grape spirit known as aguardente to stop the fermentation, leaving residual sugar in the wine, and to boost the alcohol content. The fortification spirit is sometimes referred to as brandy but it bears little resemblance to commercial brandies. The wine is then stored and aged, often in barrels stored in a Lodge (meaning "cellar") as is the case in Vila Nova de Gaia, before being bottled. The wine received its name, "port", in the later half of the 17th century from the seaport city of Porto at the mouth of the Douro River, where much of the product was brought to market or for export to other countries in Europe. The Douro valley where port wine is produced was defined and established as a protected region, and the name Douro thus an official appellation, in 1756, making it the third oldest, after Chianti (1716) and Tokaj (1730).
 Links: a. Barrel b. Tokaji c. Vila Nova de Gaia d. Porto
answer:
d


question:
Question: When was the school Gunnarsson attended from 1991 to 1992 founded? Passage:Gunnarsson was born in Borås, Sweden. Gunnarsson became a lieutenant in 1974 and he attended the Marine Corps Command and Staff College at the Marine Corps Base Quantico from 1991 to 1992. After his time at Quantico, Gunnarsson was posted to the Swedish Armed Forces Headquarters, Plans and Policy Directorate, as a section head. In 1994, he took command of one of the marine defense battalions in the Vaxholm Coastal Artillery Regiment (KA 1). Gunnarsson was commanding officer of the Marinens krigshögskola (MKHS) from 1995 to 1996 and was promoted to colonel in 1996. He was then sent to Croatia as Chief Military Observer of the United Nations Mission of Observers in Prevlaka (UNMOP) based out of Cavtat. Gunnarsson served as the first mission commander from January to November 1996. In 1997, he was promoted colonel 1st class, and posted as Chief of the Naval Staff. In 1999, he was promoted to major general and assumed the position of Assistant Head of Plans and Policy Directorate, Swedish Armed Forces Headquarters. This posting made him the Supreme Commander's main planner for long term planning and responsible for the Swedish Armed Forces' annual reports to the Ministry of Defence and the Riksdag. In 2002, Gunnarsson was promoted to lieutenant general and appointed head of the General Training and Management Directorate (Grundorganisationsledningen).
 Links: a. Marine Corps University b. United Nations Mission of Observers in Prevlaka c. Swedish Armed Forces d. Vaxholm Coastal Artillery Regiment
answer:
a


question:
Question: Why did Red Hood seek revenge on Batman? Passage:Besides the aforementioned death of Stephanie Brown, many other side effects came about from this event. The biggest of these included Black Mask becoming the single crime boss in Gotham, something that would remain until his death at the hands of Catwoman. Another would be Commissioner Akins effectively making all vigilantes criminals, a move that would stay in place for over a year until the return of Commissioner Gordon to the Gotham City Police Department. The more controversial effect, not seen until the follow-up story War Crimes, was turning Doctor Leslie Thompkins against Batman, when she allows Stephanie Brown to die from her wounds as Batman's "punishment" for including children in his war on crime. Jason Todd, a former Boy Wonder, confirmed to be alive on  as a violent vigilante the Red Hood who waged a one-man war against Black Mask and successfully crippling his criminal operation in the city before seeking revenge towards Batman and the Joker. Finally, the citizens of Gotham City no longer consider Batman to be an urban legend (which has been in place since Zero Hour), as he was caught on camera trying to save the life of a wounded student at the end of Act One. Additionally, Barbara Gordon lost the clock tower that served as her home and headquarters and left Gotham City, eventually moving to Metropolis. She would later re-establish her ties to Batman.
 Links: a. Red Hood b. Red Hood c. Barbara Gordon d. Metropolis (comics)
answer:

a