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]: Paulo Ribenboim proved in 1991 that the set of these is Diophantine, and in 1912 Edmund Landau proposed four "unattackable problems" dealing with them, none of which have yet been solved. The theorem named for them states that the number of them less than or equal to n is approximately equal to n divided by the natural logarithm of n. The GIMPS project seeks to find examples of the Mersenne type of this number, ordinary examples of which can be found using the sieve of Eratosthenes. For 10 points, identify these numbers whose only two factors are 1 and itself.
[EX A]: Social Science

[EX Q]: One figure with this name defeated the rebel George Maniakes, and married his daughter to the son of Yaroslav the Wise. Another figure of this name convened the Sixth Ecumenical Council and condemned monothelitism as heresy before being defeated by the Bulgarian Khan Asparukh at the battle of Ongal. One man by this name ruled the Despotate of Morea before overcoming his brother Demetrios to obtain his most famous title, and that figure died anonymously shortly after the death of Giovanni Giustiniani. The most famous figure of this name executed his son Crispus after defeating Licinius. For 10 points, give this name whose most famous bearer crushed Maxentius at the Battle of Milvian Bridge before moving his capital to Byzantium, which he renamed after himself
[EX A]: History

[EX Q]: In the Introduction to this work, an engineer visits town and asks about the history of the title character that he views there; that serves as the frame for this novel. One fantasy of that title character is to have his stockings mended on a cold winter evening by a woman. The title character's wife was talkative when she married him, but after the death of his mother, she becomes histrionic. She's later able to use her skill as a nurse when her husband crashes into a tree after a sleigh ride. That sleigh ride occurs after the highly symbolic shattering of a red pickle dish by the wife's cat, and that precedes the title character's declaration that he cannot live without Mattie Silver, who's being sent away by Zeena. For 10 points, identify this novella about a stoic Starkfield farmer, a work by Edith Wharton.
[EX A]:
Literature