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.

Example Input: Question: In what era did the architectural style of Ince Blundell Hall emerge?  Passage:Ince Blundell Hall is in Georgian style. It is constructed in brick with sandstone dressings, and has an L-shaped plan. The main block faces southeast; it is in two storeys with an attic, and has a front of nine bays. Richard Pollard and Nikolaus Pevsner describe the front as being in late English Baroque style, and consider that it was "evidently inspired" by the front of Buckingham Palace, London. Between the upper storey and the attic is an entablature with a cornice and a panelled parapet. The central three bays project forward, the lower storeys are flanked by pairs of giant pilasters, and at the sides of the central doorway are giant columns. There are more pilasters at the ends of the building, and in the central three bays of the attic. All the pilasters and columns are Corinthian in style. The windows are sashes and are surrounded by architraves. The ground floor windows in the central bays have segmental heads with keystones, and those in the outer bays have friezes and pediments carried on consoles. Below the upper floor windows are panelled aprons and consoles. The central doorway has a segmental head and a keystone carved with the Blundell arms. At the corners of the front are quoins.
 Links: a. Sash window b. Sandstone c. Nikolaus Pevsner d. Georgian architecture
Example Output: d

Example Input: Question: Who ruled the Seljuk Empire when they annexed Taşburun? Passage:According to mayor's page Taşburun was founded by Turkmen tribe named Taşburun after Seljuks annexed the area to their realm in 1064. In 1239 it was captured by the Mongols and in 1514 by the Ottoman Empire. It was ceded to Safavid Persia by the Treaty of Istanbul (1736) . In 1746 it was returned to Ottoman Empire by the Treaty of Kerden but lost to Russian Empire by the Treaty of San Stefano signed after the Russo-Turkish War (1877–1878). At the end of the First World War it was returned to Turkey. In 1993 it was declared a seat of township.
 Links: a. World War I b. Ottoman Empire c. Treaty of San Stefano d. Seljuq dynasty
Example Output: d

Example Input: Question: How long did Milo's uncle serve in the U.S. Congress? Passage: November 1915, von Brincken married again to the San Francisco socialite Milo Abercrombie (1895-1977). Born in Houston, Texas, Milo was the niece of John W. Abercrombie, U.S. congressman from Alabama and acclaimed by noted portraitist Harrison Fisher as "California's greatest beauty". They had two children, Wilhelm Friedrich (1918-1980) and Maria A. (1917-2010). She divorced von Brincken in 1919 during his imprisonment and legally changed her and their two children's last name back to her maiden name, Abercrombie, so her children would not be "ashamed" of their name. Despite the divorce, von Brincken remained devoted to his former wife and she was able to remarry again, thanks to him. When the Roman Catholic Church forbade Abercrombie's intended marriage to U.S. Navy lieutenant Lyman K. Swenson, due to her divorce, von Brincken came forth and disclosed his earlier marriage to Alice Roedel. As both Roedel and von Brincken were Catholic, that marriage was sanctioned by the Church. Thus, the Church did not recognize von Brincken's later marriage to Abercrombie. Abercrombie and Swenson, who had both refused to marry unless it was sanctioned by the Catholic Church were then free to wed. Abercrombie and Swenson were married on August 11, 1920 by Father John Byrne at St Mary's Cathedral in San Francisco. At the wedding dinner that night, von Brincken's young son with Abercrombie, referred to as "John" and "Buster" in the press, was a "guest of honor" and toasted by his new stepfather and the officers of the submarine H-6 that he commanded, pledging, "the little chap's future to the uniform of blue." Swenson and Abercrombie had two children, Lyman K. Jr. ("Robert") and Cecilia. Abercrombie obtained an interlocutory decree of divorce from Swenson in May 1925, with the final decree a year later. Several months later, in October 1925, the newspapers speculated that Abercrombie would marry another naval officer, Lieutenant Commander Hugo W. Koehler, reputed to be the "wealthiest officer" in the Navy. The third generation of a wealthy St. Louis brewery family, Koehler had been a naval intelligence and U.S. State Department spy in South Russia during the Russian Revolution. Swenson had introduced Milo Abercrombie to Koehler in Honolulu. Koehler was in Panama with his ship, USS West Virginia (BB-48) when he read a newspaper account that he was engaged to marry Milo Abercrombie. Brushing it off, Koehler curtly told the press, "Some error," while Abercrombie did not take it so lightly. "I have been deeply humiliated", she told reporters, her eyes "wet with tears". "This is a most unkind blow of fate. I cannot possibly understand how this false rumor got about." Two years later, Koehler married Matilda Pell, the ex-wife of U.S. Congressman Herbert Pell (D-NY) and mother of future United States Senator Claiborne Pell (D-RI). In a bitter child visitation court battle in 1927 that went all the way to the California Court of Appeals, Abercrombie lost custody of her children with Swenson to him, after making baseless accusations that he had molested their four-year old daughter, Cecelia. The appellate court excoriated Abercrombie, "[I]in furtherance of a manifest determination to prevent him from ever seeing the children again, under any circumstances, she was instrumental in inspiring and promoting a scheme directly involving one of the children which had for its obvious purpose the ruination of respondent's character as a man, the bringing about of his complete disgrace as a naval officer, and the destruction of the love and affection which his children had theretofore manifested toward him." Swenson v. Swenson" (1929) 101 Cal.App. 440. In 1929, Lyman Swenson married Loretta B. Bruner (1897-1979). His son, Lyman K. Swenson Jr. ("Robert") (1923-2016) was also a US Naval officer.
 Links: a. John Abercrombie (congressman) b. Socialite c. Panama d. Hugo W. Koehler
Example Output:
a