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.

Ex 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 Leon-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 Diaz 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 Diaz del Castillo d. Nahuatl

Ex Output:
a

Ex Input:
Question: Which city had a greater population the year that Van der Lans stopped attending Catholic primary school in Amsterdam: Amsterdam or The Hague? Passage:Van der Lans has a Catholic background. Between 1960 and 1967 he attended a Catholic primary school in Amsterdam (until 1964) and The Hague. Between 1967 and 1973 he attended a Catholic secondary school in The Hague. He attended the atheneum and specialized in sciences. Between 1973 and 1981 he studied psychology at the Catholic University Nijmegen. In 1977 he received his candidate's exam (roughly equivalent to a bachelor's degree) and in 1981 he received his doctoral exam (roughly equivalent to a master's degree. Van der Lans specialized in cultural psychology and Psychology of religion. He also took additional courses in communication studies and education studies. He wrote his doctoral thesis about "Youth Culture, Provo and the Youth Movement" . Between 1979 and 1981 he attended courses to become a teacher in civics and science education. Between 1977 and 1981 he worked as a student-assistant on the faculty of social sciences at different departments. Between 1977 and 1983 he worked as a journalist for the quarterly magazine Psychologie & Maatschappij (Psychology and Society).
Links: a. Amsterdam b. Science education c. Psychology d. Radboud University Nijmegen

Ex Output:
a

Ex Input:
Question: How many miles long is the river that the water flows to via the the Canacadea Creek valley? Passage:Wellsville is located in the region of the Eastern Triple Divide, the cusp of the three major watersheds in the eastern United States. The Genesee River flows through the center of the village and the town of Wellsville, north to Rochester and Lake Ontario and then on to the St. Lawrence River and the Atlantic Ocean. In the Wellsville school district, in Alma, southwest of Wellsville, Honeoye Creek flows west to Oswayo Creek and then the Allegheny River, then to the Ohio and the Mississippi River, eventually to the Gulf of Mexico. And just over Jericho Hill to the northeast of Wellsville in the town of Alfred, the water flows to the east down the Canacadea Creek valley to the Canisteo River, eventually to the Susquehanna River and on to the Atlantic Ocean.
Links: a. Canisteo River b. Susquehanna River c. Ohio River d. Saint Lawrence River

Ex Output:
a