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: Who was the head of the Gambia when Cham Joof was born? Passage:Cham Joof was born on 22 October 1924 at 7 Griffith Street (Half-Die) in Bathurst now Banjul, the capital of the Gambia. He came from a Serer and Wolof background. He was the third child and the eldest son of Ebrima Joof (1887–1949) and Aji Anna Samba (1896 – 9 April 1977). On his father's side (the Joof family), he was a descendant of the Joof Dynasty of Sine and Saloum, and the Njie Dynasty of Jolof. On his mother's side, he was the great grand-nephew of Tafsir Sa Lolly Jabou Samba — a 19th-century Senegambian jihadist, military strategists and advisor to Maba Diakhou Bâ and one of the commanders of his army. Cham Joof was the elder brother of Gambian barrister Alhaji Bai Modi Joof.
 Links: a. The Gambia b. Joof family c. Njie d. Saloum

Output: a


Input: Consider Input: Question: Which teacher who taught Torquemada at the convent died first? Passage:There are few firm biographical details concerning Juan de Torquemada, most of which have to be deduced from his own work. Even basic information is subject to uncertainty and controversy. Born at Torquemada, Palencia, north central Spain, at an unknown date before 1566 (Miguel León-Portilla argues in detail for 1562) he was brought by his parents to New Spain probably while still a child. He took the Franciscan habit, as is generally agreed, in 1579, and pursued a course of studies in Latin, theology, philosophy and Nahuatl. Brief notices in his own works put him at the convent in Tlacopan in 1582 and (while still a youth) at the convent in Chiauhtla - the presumption being that these relate to his novitiate. It is uncertain if he began his studies at the convento mayor de San Francisco in Mexico City, but it is presumed that part at least of his studies were conducted while resident at the convent of Santiago, Tlatelolco. Among his teachers he names fray Juan Bautista (who taught him theology) and Antonio Valeriano (who taught him Nahuatl and whom he especially praised for his talents). At some time in the early 1580s he was sent by his superiors to Guatemala where he encountered the conquistador Bernal Díaz del Castillo. By 1584 he was certainly at the convent of San Francisco, where he assisted in the infirmary. The conjectured date of his priestly ordination is 1587 or 1588.
 Links: a. Juan Bautista b. New Spain c. Bernal Díaz del Castillo d. Nahuatl

Output: a


Input: Consider Input: Question: Which of the clubs that Pietro De Giorgio played for has existed the longest? Passage:Born in Praia a Mare, Calabria region, De Giorgio spent a season with Serie D club Battipagliese before he was signed by a professional club San Marino in 2001 in temporary deal from Napoli. In January 2002 he left the Serie C2 club for Serie B club Napoli, the parent company of San Marino Calcio at that time. In 2002–03 season he was signed by Serie C1 club Cittadella in temporary deal. In January 2003 he was signed by Serie B club Messina along with Andrea Gaveglia in co-ownership deals, for a total fee of €26,000. In June 2003 the deals were renewed. De Giorgio also returned to Serie C2 for Melfi after only 1 appearances in the whole 2002–03 Serie C1. In June 2004 the co-ownership deals were extended again. However Napoli bankrupted at the start of season. Thus, De Giorgio who initially joined Serie C1 club Frosinone in temporary deal, was converted into new co-ownership deal.
 Links: a. A.S. Cittadella b. S.S.C. Napoli c. A.S.D. Battipagliese d. 2002–03 Serie C1


Output: c