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.

In one of this mans plays, the crippled Major Magnus Muldoon turns out to be his own half-brother Albert in disguise. Another of his plays features a singer-actress who retired after seeing TV reports of a moon landing. The title character is identified as the third-string critic Puckeridge after Moon joins the action onstage in this mans The Real Inspector Hound, and Inspector Bones reveals that he is a big fan of Dotty Moore in his play Jumpers. A teenage girl named Thomasina predicts the heat death of the universe in one of his plays, and the title characters of another of his plays watch a rehearsal of The Murder of Gonzago. FTP name this author of Arcadia and Rosencrantz and Guildenstern Are Dead.
Literature

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.
Science

One form of resonance posited to describe these objects occurs where the difference between the pattern and co-rotation frequencies is an integer quotient of the epicyclic frequency. Those resonances exist in the theory of these objects as density waves in a gravitational plasma dispersion relation; those waves are only quasi-stable as these objects cannot be stable due to the so-called winding problem. The aforementioned resonances are named for Lindbladt and the aforementioned theory for (*) Lin and Shu. The rotation rate of these objects increases with luminosity according to the Tully-Fisher relation. Like their elliptical counterparts, they generally contain a red nucleus. Some of these galaxies contain bars. FTP, identify this common type of galaxies, exemplified by the milky way, characterized by their swirling appearance.

Science