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: 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
Example Output: b

Example Input: Question: Who was the head coach for Ajax Youth Academy when Jozefzoon joined? Passage:A Winger and attacking midfielder, Jozefzoon began his career with spells at CTO '70 and AFC. He joined the Ajax Youth Academy in 2006 and signed a three-year professional contract in June 2008. Jozefzoon won his maiden call into the first team squad for the opening match of the 2010–11 Eredivisie season versus FC Groningen and remained an unused substitute during the 2–2 draw. He made his senior debut six days later, replacing Urby Emanuelson at half time during a 4–2 win over SBV Vitesse. He scored his only goal for the club in a 5–0 KNVB Becker third round win over MVV Maastricht on 22 September 2010. After five appearances during the 2010–11 season, Jozefzoon signed a one-year contract extension in June 2011, but spent the 2011–12 season away on loan and was released at the end of the season.
 Links: a. SBV Vitesse b. SBV Vitesse c. Ajax Youth Academy d. Ajax Youth Academy
Example Output: c

Example Input: Question: What's the mascot of the team Allen played against in the 66th Minor Counties Championship match? Passage:Allen moved to Lymington, Hampshire in 1964, when his parents took over The Mayflower pub in the town. Shortly after moving there, he began playing for Lymington Cricket Club, where he was initially encouraged to be a seam bowler. While bowling slow left-arm orthodox in the nets at the County Ground, Southampton, he was spotted by Arthur Holt who encouraged him to stick with that bowling style. Having impressed in club cricket for Lymington, Allen briefly played for the Hampshire Second XI, before being selected to play minor counties cricket for Dorset, making his debut for the county in the 1976 Minor Counties Championship against Cornwall. From 1976 to 1983, Allen played a total of 66 Minor Counties Championship matches, the last of which came against Shropshire. He also made a single appearance for the county in the 1983 MCCA Knockout Trophy against Oxfordshire. He took a total of 252 wickets for Dorset. Allen also made a sole List A appearance for Dorset in the 1983 NatWest Trophy against first-class opponents Essex at Dean Park, Bournemouth. In Dorset's innings 111 all out, Allen was dismissed for 7 runs by Neil Foster, while in Essex's innings he bowled 6 wicketless overs and caught Keith Fletcher, with Essex winning by 7 wickets.
 Links: a. Dorset County Cricket Club b. Neil Foster c. Shropshire County Cricket Club d. Neil Foster
Example Output:
c