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.

Input: Consider Input: Question: How many people did Arnstadt command as a company commander of the 6th border company in Dermbach? Passage:In June 1949, Arnstadt registered for service with the Volkspolizei, the police force of the Soviet Occupation Zone, becoming an Anwärter der VP (police cadet) with the Kasernierte Volkspolizei in Gotha. In March 1950, Arnstadt was appointed to the German Border Police (Deutsche Grenzpolizei) in Dermbach, patrolling the Inner German border with West Germany. In 1952, Arnstadt failed his first attempt to become an officer at the police school in Sondershausen. In 1953, his marriage ended in divorce, with his two children Veronika and Uwe staying with the mother, and remarried shortly after. In 1954, Arnstadt passed his officer training at Sondershausen and was appointed the rank of Unterleutnant, and the following year was promoted to lieutenant. Arnstadt functioned as a recruiter for the German Border Police until 1957 when he was appointed as a company commander of the 6th border company in Dermbach. Arnstadt was responsible for a section of the border at Wiesenfeld, a region of Bezirk Suhl in the Rhön Mountains at the westernmost point of the Warsaw Pact. Arnstadt's section contained the highly-strategic Fulda Gap, which aroused the special interest of NATO, and a short distance from the US Army's Observation Post Alpha. Arnstadt moved with his wife to Wiesenfeld and in April 1957 became an unofficial collaborator (Geheimer Informator) of the Ministry for State Security (Stasi) until this relationship was ended fourteen months later. 
 Links: a. Company commander b. Inner German border c. Dermbach d. Kasernierte Volkspolizei

Output: a


Input: Consider 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

Output: d


Input: Consider Input: Question: Of the two players Pouille faced at he 2013 French Open, which  achieved the highest career ranking? Passage:Pouille made his Grand Slam singles debut at the Australian Open after receiving a wildcard for the singles qualifying competition; he lost in the second qualifying round to Ruben Bemelmans. Pouille made his ATP World Tour singles debut as a wildcard at the tournament in Montpellier, where he lost his opening singles match in the first round of the main draw to the No. 7 seed Viktor Troicki in straight sets. Pouille also lost his opening singles match in the first round of the main draw of his next ATP World Tour tournament in Marseille as a wildcard, this time to Julien Benneteau. Pouille appeared in the singles main draw of a Grand Slam event for the first time in his career at the 2013 French Open, thanks to a singles main draw wildcard; in the first round, he defeated American wildcard Alex Kuznetsov in straight sets, but lost in the second round to the No. 26 seed Grigor Dimitrov in straight sets. In June, Pouille qualified (he had to win three singles qualifying matches) for the singles main draw of an ATP World Tour tournament for the first time in his career at the grass court tournament in 's-Hertogenbosch; he lost his singles main draw first-round match to Jérémy Chardy. In July, Pouille won his second ITF Men's Circuit singles title of 2013 in Estonia (he had earlier in April won the ITF Men's Circuit Vietnam F3 singles title). In October, Pouille lost in the singles semifinals of the ATP Challenger Tour tournament in Kazan, which was hitherto his best singles performance in an ATP Challenger Tour tournament.
 Links: a. Grigor Dimitrov b. Alex Kuznetsov c. Jérémy Chardy d. Jérémy Chardy


Output: a