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]: The category of these objects has the property that every morphism is a monomorphism. The spectrum of one of these objects contains one point, and the p-adic numbers for a given p form one of these. These objects necessarily have zero Krull dimension. Those with a finite number of elements have order equal to a power of a prime. Their extensions have a one-to-one correspondence with their intermediates according to the fundamental theorem of Galois theory. A division algebra is one of these without multiplicative commutativity, and can be defined as a ring with multiplicative identity, inverse, and commutativity. For 10 points, name these algebriac structures that include the rationals and reals.
[EX A]: Science

[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]: The speaker of this work describes watching a Potter "thumping his wet clay." One version of this work opens with a description of "Morning in the Bowl of the Night" and with the command "Awake!" This work contains the line "the Moving Finger writes; and, having writ / Moves on." One translation of this work describes (*) "singing in the Wilderness" along with "A Book of Verses underneath the Bough / A Jug of Wine, a Loaf of Bread--and Thou" and was made by Edward Fitzgerald. It consists of four line poems called quatrains. For 10 points, name this series of poems by the Persian poet Omar Khayyam.
[EX A]:
Literature