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.
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Question: 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

Answer: b

Question: Question: What is the oldest city that was chosen for filming Aeon Flux? Passage:The screenplay was written by Phil Hay and Matt Manfredi, and directed by Karyn Kusama. It was based on the animated TV series by Peter Chung, who had a minor role in this film version of his work. In the early stages of production, actress Michelle Rodriguez was considered for the part of on. She had previously worked with Kusama in Girlfight. Kusama had originally suggested filming in Brasilia, the capital of Brazil, because the 20th-century modern architecture of that city fit with her vision of Bregna. The producers rejected the idea because Brasilia lacked the infrastructure and technical expertise to support a major film production. After several cities were scouted, Berlin and Potsdam in Germany were chosen for filming. Berlin had several locations that fit into the organic yet structured world of on Flux. The crew gained permission to film in several locations that had never allowed such access before, including the Treptow Crematorium, the Adlershof Trudelturm and Windkanal wind tunnel facility, and the Haus der Kulturen der Welt ("House of the World's Cultures"). Additional locations included the Bauhaus Archive and a dissection theatre built in 1790 to train veterinarians, part of the Berlin animal shelter. It was used as the Handler space. Filming was temporarily suspended for a month during September 2004 while Theron recovered from a neck injury she sustained during stunt-work on the tenth day of shooting. She was hospitalized in Berlin for five days and required about six weeks of physiotherapy to recover.
Links: a. Berlin b. Girlfight c. Matt Manfredi d. Phil Hay (screenwriter)

Answer: a

Question: Question: How old was Simpson's wife when he married her? Passage:On June 21, 2012, Simpson married Canadian figure skater Jamie Sale, whom he had "known for years from the Edmonton skating scene". They had been paired as partners in late 2009 for the first season of the CBC show Battle of the Blades, which they won. Simpson and Sale have one daughter, Samantha Rae Simpson, born on July 7, 2013. Through this marriage, Simpson is also a stepfather to Sale's son Jesse Pelletier (born September 30, 2007), from her first marriage to skating partner David Pelletier. He also has three children from a previous marriage, including son Dillon, who was drafted by the Edmonton Oilers in the 4th round of the 2011 NHL Entry Draft and is currently a defenseman for the Bakersfield Condors.
Links: a. Battle of the Blades (season 1) b. Canadian Broadcasting Corporation c. Jamie Sale d. Battle of the Blades

Answer:
c