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.

[Q]: This compound promotes the dephosphorylation and activation of enzyme HMG-CoA to favor cholesterol synthesis and a phenylalanine for leucine substitution at residue B25 results in its "Chicago" variety. Its biosynthesis involves an excision of the C-peptide, and the compound functions by binding to tyrosine kinase receptors on cell surfaces. Sanger's improvement upon the methods of Edman degradation involved its sequencing, and its production occurs primarily in beta cells on the islets of langerhans. For ten points, name this pancreatic counterpart of glucagon used to regulate blood sugar, deficiencies of which are found in sufferers of diabetes.  
[A]: Science


[Q]: This man achieved full power within his party at the Zunyi Conference. That conference occurred while this man and other members of his party were traveling from Jiangxi (jee-AHNG-shee) to Yanan as part of the Long March. This leader's third wife was part of an influential group that was named the Gang of Four. This ruler was responsible for his country taking part in the (*) Great Leap Forward and the Cultural Revolution. For 10 points, name this political rival of Chiang Kai-shek who was the first leader of Communist China.
[A]: History


[Q]: This man's sacred works include the motet In convertendo, while his instrumental works consist primarily of two sets of "pieces for harpsichord," as well as the individual harpsichord pieces Les petits marteaux and La Dauphine. One opera-ballet by this composer consists of a prologue and four acts, which include The Incas of Peru and The Savages of America, all with different characters. Along with The Gallant Indies, he wrote about celebrations of Hebe, Ramiro, and Polyhymnia, and an Hommage to this man was included in Debussys first book of Images. In one of his operas, the aria "Tristes apprets" is sung by Telaira on the death of one of the title brothers, while his first and most famous opera, which features the aria "Quelle plainte en ces lieux m'appelle," ends with the reuniting of the title characters after one had been swallowed up by flames. For 10 points, name this opponent of Lully, a French Baroque composer most famous for Castor et Pollux and Hyppolyte et Aricie.
[A]:
Fine Arts