In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

[EX Q]: Coombs tests detect these bodies bound to erythrocytes, and a technique that uses these entities is ELISA. These molecules have a namesake fold, in which two beta sheets are held together by amino acid charges. These adaptable molecules can somatically recombine in a process called V(D)J recombination and are also capable of changing isotype by altering conformation of their heavy chains. Like enzymes, they operate via a a so-called "lock-and-key" mechanism, as verified by Linus Pauling. FTP, name these characteristically y-shaped immune molecules exploited in vaccination and produced by B cells in response to specific antigens.
[EX A]: Science

[EX Q]: A recent mass death of puffins off this nation's coast has mirrored a similar dead bird event in Arkansas. In the aftermath of one recent crisis in this nation, Edison Pena was invited to (*) Graceland to celebrate Elvis's 76th birthday, but that man and his fellows are better-known for being the subject of a rescue mission based at the tent city Camp Hope. For 10 points, name this nation that recently saw thirty-three miners emerge safely from underground after being trapped for 69 days, whose rescue capsule from that incident now resides in Santiago.
[EX A]: Literature

[EX Q]: His first political efforts involved him working with George Padmore to organize a 1945 meeting in Manchester. This man was part of a group with J. B. Danquah, although Danquah would later end up running against him in elections and being thrown in prison by him for dissent. This man formed the Convention People's Party in 1949, after splitting from Danquah's United Gold Coast Convention, although his actions in making it the sole party in his home country would lead to his downfall. After dubbing himself "the Redeemer", he was overthrown in a military coup while on a state visit to China in 1966. For 10 points, who was this man, co-organizer of the Fifth Pan-African Congress and the first president of Ghana
[EX A]:
History