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]: The enzyme LCAT catalyzes the formation of an ester from this compound. Intermediates in the synthesis of this compound include squalene [SKWAY-leen] and mevalonate [muh-VAL-uh-nate], the latter of which is produced by HMG-CoA reductase. Vitamin D is formed from the 7-dehydro form of this compound, which reduces membrane fluidity. This compound, which is transported to the liver by high-density lipoprotein, is linked to heart disease. For 10 points, name this compound whose amount in the blood is lowered by statins such as Crestor and Lipitor.
[A]: Science

[Q]: This composer reworked an instrumental sarabande into the aria Lascia ch'io planga. He called for improvised solo organ pieces to be placed ad libitum into the later of his organ concertos, a genre he invented to show off. The "Hailstone Chorus" appears in the first part of an oratorio by this man whose second part is "The Song of Moses"; that work is Israel in Egypt. One of this man's works includes a suite in G major that has a rigaudon, a minuet, and five shorter, unnamed pieces, as well as a suite in F major that begins with a (*) French overture. That piece was written to be played on barges floating on the River Thames for King George I. For 10 points, name this Baroque composer who wrote Water Music and the oratorio Messiah.
[A]: Fine Arts

[Q]: He attended the International Labor Organization in Geneva for his country before turning to writing. More recent works include The Crystal Frontier, Voluptuario, and The Orange Tree. His first short story collection, The Masked Days, was followed up by Constancia and Other Stories for Virgins. He gained little acclaim for his first novel When the Air is Clear, although Philip II's construction of El Escorial was the subject of a more famous work, Terra nostra, and he also wrote a fictionalized account of Ambrose Bierce's last days in The Old Gringo. FTP, name this noted Marxist and author of The Death of Artemio Cruz.
[A]:
Literature