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: Is the Philippine Sea part of the Pacific Ocean? Passage:Nueva Camarines is the name of a proposed new province of the Philippines to be created out of Camarines Sur in the Bicol Region of the island of Luzon. The proposed province would border Camarines Sur to the west, the Philippine Sea to the north, Albay to the south, and to the east the island province of Catanduanes across Maqueda Channel. Its capital is expected to be Tigaon if the bill is passed. House Bill 4820 which would create the province passed the House of Representatives of the Philippines with 229 votes in favor to one against in 2011 and is now under consideration by the Senate of the Philippines. However, at the end of 15th Congress, it failed to pass to the Senate. In the 16th Congress under then Representative Felix William Fuentebella, a bill is yet to be filed to repropose the creation of the province, due to lack of support from fellow Camarines Sur Representatives Maria Leonor Robredo and Salvio Fortuno. In the 18th congress under new Representative Arnulf Bryan Fuentebella.
 Links: a. Philippine Sea b. 15th Congress of the Philippines c. 15th Congress of the Philippines d. Philippine Sea
Example Output: a

Example Input: Question: When was the founding of the city that the crusaders captured? Passage:The See of Tyre was the most prestigious archbishopric under the authority of the patriarchs of Antioch from the 5th century. The archbishops had more than a dozen suffragans, including the bishops of Acre, Beirut, Jubail, Sidon, Tripoli and Tortosa. The crusaders captured Tortosa (now Tartus in Syria) in 1102, Jubail in 1103, and Tripoli in 1109. In the late 1170s, William of Tyre wrote that Bernard of Valence, the Latin Patriarch of Antioch, had soon appointed Latin bishops to the three bishoprics. Documents written in the early 12th century did not refer to the bishops of the three dioceses, suggesting that the three sees, all located in the newly established crusader County of Tripoli, were actually left vacant. After King Baldwin I of Jerusalem captured Sidon and Beirut in 1110, Ghibbelin of Arles, the Latin Patriarch of Jerusalem, convinced Baldwin I to ask Pope Paschal II to place the two sees and also the bishopric of Acre under the jurisdiction of the patriarchs of Jerusalem. Accepting the king's argumentation, the Pope ruled on 8 June 1111 that the boundaries of the ecclesiastical provinces should follow the political frontiers. Patriarch Bernard protested, but the Pope confirmed his decision, emphasizing his right to alter the boundaries of the patriarchates.
 Links: a. Patriarch of Antioch b. Baldwin I of Jerusalem c. Tartus d. William of Tyre
Example Output: c

Example Input: Question: Which town where the battle was initially fought currently has the most residents? Passage:From May, 1941, it was transferred to an occupation force in Croatia. The battles with Yugoslav Partisans of increasing intensity were fought in November–December 1941 at Štirovača forest, Divoselo (Croatia), and Žuta Lokva, resulting ultimately in the Battle of the Neretva. It was fought initially at Gospić, Otočac and Bihać. The Yugoslav Partisans has launched a major assault on Korenica and Udbina from 2 January until 15 January 1942. These attacks were fended off by division Re, and in February–March, 1942, it participated in the mopping-up operation in the same area. The culmination of Battle of the Neretva for division Re was the Operation K, between 23 – 28 March 1942, carried out over six days by the Italian V Corps. The objective was to break through to and relieve the surrounded garrisons in Titova Korenica, Udbina and Donji Lapac the operation was successful and the division suffered only light casualties. In April, 1942, the Yugoslav Partisans has launched an assault on Mogorić and Bihać. Pressure was such what he garrison of Bihać had to be evacuated in June, 1942. All lost positions were recovered by the end of June, 1942, after fierce fighting.
 Links: a. Yugoslav Partisans b. Udbina c. Gospić d. Yugoslav Partisans
Example Output:
c