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's the average lifespan of the animal that has a jaw with properties similar to those that probably led to the evolution of baleen? Passage:The oldest true fossils of baleen are only 15 million years old because baleen rarely fossilizes, and scientists believe it originated considerably earlier than that. This is indicated by baleen-related skull modifications being found in fossils from considerably earlier, including a buttress of bone in the upper jaw beneath the eyes, and loose lower jaw bones at the chin. Baleen is believed to have evolved around 30 million years ago, possibly from a hard, gummy upper jaw, like the one a Dall's porpoise has; it closely resembles baleen at the microscopic level. The initial evolution and radiation of baleen plates is believed to have occurred during Early Oligocene when Antarctica broke off from Gondwana and the Antarctic Circumpolar Current was formed, increasing productivity of ocean environments. This occurred because the current kept warm ocean waters away from the area that is now Antarctica, producing steep gradients in temperature, salinity, light, and nutrients, where the warm water meets the cold.
 Links: a. Antarctic Circumpolar Current b. Dall's porpoise c. Salinity d. Salinity

Output: b


Input: Consider Input: Question: How old is the producer of Viewtiful Joe? Passage:Viewtiful Joe is a 2.5D side-scrolling action-platformer, released on June 26, 2003. The title character is a parody of tokusatsu superheroes and is trying to save his girlfriend, who has been trapped in "Movieland" by a group of supervillains known as Jadow. To complete his quest, Joe must use his Viewtiful Effects Powers, which are based on camera tricks and special effects used in films. These include "Slow", which simulates bullet time; "Mach Speed", allowing Joe to attack all enemies with his afterimages; and "Zoom In", which triggers a camera close-up and unlocks special attacks. Internally, Capcom treated the game as a "staff-focused project" with the goal of increasing the skills of director Hideki Kamiya. The game achieved a Metacritic score of 93 and won GameCube Game of the Year awards from numerous publications including IGN, GMR, and USA Today. The game sold out its initial shipment of 100,000 to achieve a lifetime total of 275,000 units. Producer Atsushi Inaba considered the game a success, achieving his goals of training staff, keeping a small budget, and selling well. However, these numbers were lower than Capcom expected, prompting the publisher to port Viewtiful Joe to PlayStation 2 in 2004, with expanded features. This version sold 46,000 copies with a slightly lower Metacritic score of 90 owing to the lack of progressive scan and frame rate slowdown generated by the porting process.
 Links: a. Frame rate b. Hideki Kamiya c. Hideki Kamiya d. Atsushi Inaba

Output: d


Input: Consider Input: Question: Which state was Nelson enrolled in school when he was 13? Passage:William Nelson was the third and youngest son of Dr. Thomas W. Nelson (1796–1849) and Frances Doniphan (1795–1845) of Maysville, Kentucky. He attended Maysville Academy (Seminary) and was enrolled in Norwich University at age thirteen. Two years later, Nelson's preparatory training at the Vermont military school concluded when Congressman Garrett Davis secured an appointment for him to become a midshipman in the United States Navy. In the spring of 1840, Nelson reported for training aboard the . For the next five years he sailed the South Pacific under the leadership of harsh, overbearing, and insensitive brutes. Nelson then joined the first class to attend the newly established Naval Academy at Annapolis, Maryland. On July 11, 1846 Nelson became a passed midshipman and the following October, he reported for duty aboard the , the flagship for the Home Squadron in the Gulf of Mexico. At the Siege of Veracruz, he served with Naval Battery No. 5, and on the second Tabasco Expedition, Nelson was a member of the Second Artillery Division. In February 1848, he became acting master of the . At the conclusion of his service, Nelson received a sword for heroism and proficiency as an artillerist. In the summer of 1849, he joined the Mediterranean Squadron, and on September 1, 1851, he was acting lieutenant of the when exiled Hungarian revolutionary Louis Kossuth boarded the vessel to come to the United States. In December, Nelson became an escort for the Magyar's famous tour of the United States. On September 19, 1854 he was promoted to sailing master and the following April 18, 1855 achieved the rank of lieutenant. In September 1858, Nelson joined the for the mission of returning captured slaves to Monrovia, Liberia. Two years later, he was at the Washington Navy Yard as an ordnance officer.
 Links: a. Passed midshipman b. Second Battle of Tabasco c. United States Naval Academy d. Norwich University


Output: d