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: Which of the seas that the Sibiryakov sailed to was larger? Passage:A. Sibiryakov sailed on 28 June 1932 from the Krasny (previously Sobornoy) docks in Arkhangelsk, crossed the Kara Sea and chose a northern, unexplored way around Severnaya Zemlya to the Laptev Sea. In September, after calling at Tiksi and the mouth of the Kolyma, the propeller shaft broke and the icebreaker drifted for 11 days. However, A. Sibiryakov crossed the Chukchi Sea using improvised sails and arrived in the Bering Strait in October. A. Sibiryakov reached the Japanese port of Yokohama after 65 days, having covered more than in the Arctic seas. This was regarded as a heroic feat of Soviet polar seamen and Chief of Expedition Otto Schmidt and Captain Vladimir Voronin were received with many honors at their return to Russia.
 Links: a. Arkhangelsk b. Tiksi c. Kara Sea d. Kolyma

Output: c


Input: Consider Input: Question: Which country has the smaller land mass, Finland or Denmark? Passage:Sweden ( ), officially the Kingdom of Sweden ( ), is a country in Northern Europe. It borders Norway to the west and north and Finland to the east, and is connected to Denmark in the southwest by a bridge-tunnel across the Öresund Strait. At , Sweden is the largest country in Northern Europe, the third-largest country in the European Union and the fifth largest country in Europe by area. The capital city is Stockholm. Sweden has a total population of 10.3 million of which 2.5 million have a foreign background. Persons who have foreign backgrounds are defined as persons who are foreign born, or born in Sweden with foreign born parents. It has a low population density of and the highest urban concentration is in the central and southern half of the country.
 Links: a. Capital City b. Finland c. Finland d. Stockholm

Output: b


Input: Consider Input: Question: What age did the baseball historian who wrote the 1903 essay live to? Passage:Doubleday's invention of baseball was the finding of a panel appointed by Albert Spalding, a former star pitcher and club executive, who had become the leading American sporting goods entrepreneur and sports publisher. Debate on baseball's origins had raged for decades, heating up in the first years of the 20th century, due in part to a 1903 essay baseball historian Henry Chadwick wrote in Spalding's Official Baseball Guide stating that baseball gradually evolved from English game of “rounders”. To end argument, speculation, and innuendo, Spalding organized the Mills Commission in 1905. The members were baseball figures, not historians: Spalding's friend Abraham G. Mills, a former National League president; two United States Senators, former NL president Morgan Bulkeley and former Washington club president Arthur Gorman; former NL president and lifelong secretary-treasurer Nick Young; two other star players turned sporting goods entrepreneurs (George Wright and Alfred Reach); and AAU president James E. Sullivan.
 Links: a. Nicholas Young (executive) b. National League c. Morgan Bulkeley d. Henry Chadwick (writer)


Output: d