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]: One of these organic compounds is converted to an alkene by a diorganochromium compound in the Takai olefination. Compounds may be reduced to this functionality via the use of DIBAL-H (die-bahl aitch), and alkynes are formed by a reaction of these compounds with tetrabromomethane and triphenylphosphine named for Corey and Fuchs. When these organic compounds lack a hydrogen atom in the alpha position, their disproportionation can be induced by a base in the Cannizzaro reaction. These organic compounds are oxidized to carboxylic acids by a diamminesilver (I) complex, leading to the precipitation of metal onto the inside of the vessel, giving the positive "silver mirror" result of the Tollens test. For 10 points, name this special class of ketones with one R group being just hydrogen.
[EX A]: Science

[EX Q]: This artist depicted the remnants of a tree hanging over the edge of a cliff after a lightning strike in Storm in the Mountains, and he showed a man walking toward the titular structure high on a cliff in The Monastery of San Pedro. His former home Olana is now a tourist site, and no single place inspired the setting of Twilight in the Wilderness. Various trips led to many of his works, including The Icebergs and Falls of Tequendama, as well as images of the volcanos Chimborozo and Cotopaxi. For ten points, name this student of Thomas Cole who painted a famous version of some New York falls in Niagara  and an idealized South American landscape in Heart of the Andes.
[EX A]: Fine Arts

[EX Q]: He depicted St. Cosmas and St. Demian in his glass painting All Saints Day, and Rose-Carol Long studied hidden iconography in his works such as Painting with a Green Center and Improvisation 33 [Orient] where she identified St. John the Divine. His later work like Tempered lan are pictographic, and he compares humanity to a giant triangle in his (*) Concerning The Spiritual In Art. Three of his Compositions series were displayed in the Degenerate Art exhibit by the Nazis before their destruction. FTP name this Russian-born German artist who taught at the Bauhaus and was involved in The Blue Rider group, named for one of his paintings, to promote abstract art.
[EX A]:
Fine Arts