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 old is the producer of Viewtiful Joe? Passage:Viewtiful Joe is a 2.5D side-scrolling action-platformer, released on June 26, 2003. The title character is a parody of tokusatsu superheroes and is trying to save his girlfriend, who has been trapped in "Movieland" by a group of supervillains known as Jadow. To complete his quest, Joe must use his Viewtiful Effects Powers, which are based on camera tricks and special effects used in films. These include "Slow", which simulates bullet time; "Mach Speed", allowing Joe to attack all enemies with his afterimages; and "Zoom In", which triggers a camera close-up and unlocks special attacks. Internally, Capcom treated the game as a "staff-focused project" with the goal of increasing the skills of director Hideki Kamiya. The game achieved a Metacritic score of 93 and won GameCube Game of the Year awards from numerous publications including IGN, GMR, and USA Today. The game sold out its initial shipment of 100,000 to achieve a lifetime total of 275,000 units. Producer Atsushi Inaba considered the game a success, achieving his goals of training staff, keeping a small budget, and selling well. However, these numbers were lower than Capcom expected, prompting the publisher to port Viewtiful Joe to PlayStation 2 in 2004, with expanded features. This version sold 46,000 copies with a slightly lower Metacritic score of 90 owing to the lack of progressive scan and frame rate slowdown generated by the porting process.
Links: a. Frame rate b. Hideki Kamiya c. Hideki Kamiya d. Atsushi Inaba

Ex Output:
d

Ex Input:
Question: In what African country did Italy see a collapse in 1942? Passage:At the beginning of 1943, Italy was facing defeat. The collapse of the African front on 4 November 1942 and the Allied landings in North Africa on 812 November exposed Italy to an invasion of the Allied forces. The defeat of the Italian expeditionary force (ARMIR) in Russia, the heavy bombings of the cities, and the lack of food and fuel demoralized the population, the majority of whom wanted to end the war and denounce the alliance with Germany. Italy needed German aid in order to maintain control of Tunisia, the last stronghold of the Axis powers in Africa. Italy's Duce, Benito Mussolini, was persuaded that the war could be decided in the Mediterranean theater. On 29 April 1943, at the meeting in Klessheim, Hitler rejected Mussolini's proposition to seek a separate peace with Russia and move the bulk of the German Army south. The request for reinforcements to defend the bridgehead in Tunisia was refused by the Wehrmacht, which no longer trusted the Italian will to maintain resistance. Mussolini's health was another main factor of uncertainty. He was depressed and sick after being diagnosed with gastritis and duodenitis of a nervous origin. Because of his illness, the Duce was often forced to stay at home, depriving Italy of effective government.
Links: a. Second Battle of El Alamein b. Gastritis c. Axis powers d. Italian Army in Russia

Ex Output:
a

Ex Input:
Question: What was the percentage share of the vote of Park's predecessor? Passage:Presidential elections were held in South Korea on 19 December 2012. They were the sixth presidential elections since democratization and the establishment of the Sixth Republic, and was held under a first-past-the-post system, in which there was a single round of voting and the candidate receiving the highest number of votes was elected. Under the South Korean constitution, presidents are restricted to a single five-year term in office. The term of incumbent president Lee Myung-bak ended on 24 February 2013. According to the Korea Times, 30.7 million people voted with turnout at 75.8%. Park Geun-hye of the Saenuri party was elected the first female South Korean president with 51.6% of the vote opposed to 48.0% for her opponent Moon Jae-in. Park's share of the vote was the highest won by any candidate since the beginning of free and fair direct elections in 1987.
Links: a. Lee Myung-bak b. Park Geun-hye c. History of South Korea d. Lee Myung-bak

Ex Output:
a