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: What is the average temperature of the body of water where the frontal low developed? Passage:A tropical disturbance moved westward offshore Nicaragua and was declared Tropical Depression Twenty-Four on October 15.. During the early afternoon of the next day, ship reports indicated the formation of a tropical depression close to land. The cyclone moved at a quick pace towards the west-northwest south of a warm-core ridge. Early on the morning on October 16, Roslyn became a tropical storm. By the morning of the October 17, Roslyn had developed into a hurricane south of Acapulco. A vigorous upper trough was deepening offshore Baja California, and Roslyn began to re-curve within a few hundred miles of Manzanillo. The system struck Mazatlán as a marginal hurricane on October 20. The low-level center rapidly dissipated, although a frontal low developed in the western Gulf of Mexico, which moved over southeastern Texas and later through the Mississippi Valley. The original upper-level circulation maintained its northeast movement, bringing rainfall to the Southeastern United States.
 Links: a. Mazatlán b. Acapulco c. Nicaragua d. Gulf of Mexico

Output: d


Input: Consider Input: Question: Of the two colonies captured by Philip, which one was established first? Passage:Athens and Macedon had been at war since 356 BC, after Philip's capture of the Athenian colonies of Pydna and Potidea. Shortly afterwards, the Third Sacred War began after the Phocian seizure of the Temple of Apollo in Delphi. Athens allied herself with Phocis, against the other members of the Amphictyonic League. In 354 or 353 BCE, the Thessalians, having been defeated by the Phocians, requested that Philip become archon of Thessaly, to which Philip assented, drawing Macedon into the Sacred War. In 352 BC, Philip's erstwhile ally, the Chalkidian League (led by Olynthos), alarmed by Philip's growing power, sought to ally themselves with Athens, in clear breach of their alliance with Philip. In response, Philip attacked Chalkidiki in 349 BC, and by 348 BC, had completely destroyed the Chalkidian League, razing Olynthos in the process.
 Links: a. Phocis (ancient region) b. Chalcidian League c. Expansion of Macedonia under Philip II d. Pydna

Output: d


Input: Consider Input: Question: How old was Graham Pollard when Terry Belanger began his fellowship in England? Passage:Born in 1941, Belanger attended public schools in Bristol, Connecticut. He has degrees from Haverford College (A.B., 1963) and from Columbia University (M.A., 1964; Ph.D., 1970), where he studied under James L. Clifford, Allen T. Hazen, and John H. Middendorf. Between 1966 and 1971, while working on his dissertation on aspects of the 18th-century London book trade, he taught advanced prose composition courses at the Columbia University School of General Studies, an activity leading to the 1972 publication of The Art of Persuasion, a writing manual co-authored with J. Steward LaCasce. While in England on a Columbia traveling fellowship in 1968–69, he revised the book production sections of the 18th-century volume of the New Cambridge Bibliography of English Literature (NCBEL), working with Graham Pollard, who had compiled the original sections for the first edition of CBEL, published in 1940. With Jane Marla Robbins, he co-authored and co-directed a one-character play starring Robbins called Dear Nobody, based on the life of the 18th-century diarist and novelist, Fanny Burney. The play ran Off-Off-Broadway in 1968; it later had a five-months' Off-Broadway run at the Cherry Lane Theatre in 1974.
 Links: a. Haverford College b. Graham Pollard c. Bristol, Connecticut d. Off-Broadway


Output: b