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: What year was the castle that served as the headquarters for the Okazaki Domain built? Passage:Okazaki-shuku was a part of the flourishing castle town surrounding Okazaki Castle, the headquarters for Okazaki Domain. The classic ukiyo-e print by Andō Hiroshige (Hōeidō edition) from 1831 to 1834 depicts a Yahagibashi, one of the few bridges permitted by the Tokugawa shogunate on the Tōkaidō, and one of the longest bridges built in Japan during the early Edo period. Okazaki Castle is depicted in the distance on the far shore of the river. Following the Meiji restoration, with the construction of railroads, the route of what became the Tokaido Main Line was laid down through the nearby village of Hane ( Hane-mura) to the south. Unlike Goyu-shuku and Akasaka-juku, but this did not cause a huge economic decline to Okazaki-shuku. There was a horse-drawn rail line connecting Okazaki to the train station, as well as a teachers' school, which kept the town alive. On the other hand, Okazaki was not able to compete with the growth of Toyohashi, which was located directly on the railway, and which gained city-status first. Because of fires during World War II and the subsequent rebuilding of Okazaki in the post-war years, there are few remnants of the post town remaining today.
 Links: a. Castle town b. Okazaki Castle c. Toyohashi d. Meiji Restoration

Output: b


Input: Consider Input: Question: Which player that Dolman was dismissed by in his two first-class appearances was the oldest? Passage:Dolman made his debut for Monmouthshire against Devon in the 1922 Minor Counties Championship. He played Minor counties cricket for Monmouthshire from 1922 to 1934, making 52 appearances. After 1934, Monmouthshire didn't enter a team in the Minor Counties Championship. During his career he made two first-class appearances, both for Wales. The first of these was in 1926 when Wales played Ireland, a match in which Dolman took the wicket of Gustavus Kelly in the Irish first-innings and Jim Ganly in their second-innings, while in Wales only innings he scored 11 runs before being dismissed by Gustavus Kelly. His second first-class appearance came in 1928 against the touring West Indians, a match in which he went wicket-less, while he scored 35 runs in Wales first-innings before being dismissed by Snuffy Browne. He also played for the Glamorgan Second XI in 1936.
 Links: a. Gustavus Kelly b. Minor Counties of English and Welsh cricket c. Minor Counties of English and Welsh cricket d. Wales national cricket team

Output: a


Input: Consider Input: Question: What country was Stephen Roche competing for in the Olympics? Passage:In 1979 Williams won his first British National Hill Climb Championships setting a new course record that still stands to this day. A rival, Andy Hitchens, who remembers it well, said: "Williams looked like he'd been on starvation rations for months — he was built like a sparrow. Some people assume that there was a howling tailwind that day, but there wasn't. It was sunny, but cool.” In 1980 Williams joined the Manchester Wheelers' Club and was expected to win International honours during the next two or three seasons. Later that year he won his first stage in the Sealink International finishing four minutes clear. However Williams was left disappointed in the National Hill Climb Championships that year beaten into second place by Malcolm Elliott by only one fifth of a second after being knocked off his bike whilst warming up and receiving a broken nose and severe bruising. At the age of 21 Williams competed for Great Britain in the individual road race at the 1980 Moscow Olympic Games. He was sponsored by Harry Hall Cycles. Williams finished 47th, alongside Stephen Roche. At the end of the 1980 season Williams publicly declared his intention of living and racing in France for the 1981 racing calendar with a view to turning professional therefore joining the French club ACBB (Athletic Club de Boulogne Billencourt), Europe’s most successful sports club.
 Links: a. Manchester Wheelers' Club b. Stephen Roche c. Athletic Club de Boulogne-Billancourt d. Warming Up


Output: b