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]: Her third husband was a farmer who lost his crops to a horde of fairy mice, but they stopped harassing him after he caught one and threatened to hang it. Before she married Manawydan, she had a child by her second husband who vanished from their home and ended up at the court of Teirnon. The daughter of Hefeydd the Old, this lady of the Singing Birds decided that she preferred a lord of Dyfed to her first husband, Gwawl. Considered a version of the horse goddess Epona, she was the mother of Pryderi by the man she loved, Pwyll. FTP, name this figure from Welsh myth who rings like a bell through the night in a song by Fleetwood Mac.
[EX A]: Social Science

[EX Q]: This thinker derisively claimed ""the libertarian is the only believer in causation"" at the opening of his early essay ""The Ego as Cause. "" In other works, he wrote a chapter entitled ""The United States, Incorporated"" which imagined corporate takeover, and wrote about the ""free play of intelligence. "" He advocated making "nature and the science of nature the willing servants of human good,"" and stated that communication is the key to turning the "Great Society" into a "Great Community. "" His namesake Commission included men like Carleton Beals and investigated Soviet charges against Leon Trotsky. This author of "What Humanism Means to Me" wrote the previous book to rebut the claims of Walter Lippmann, who held that ""the public"" was a phantom. FTP, name this author of The Quest for Certainty, an American philosopher who wrote all kinds of works on democracy and education.
[EX A]: Social Science

[EX Q]: Within a constant it's the Laplacian of the function "one over distance"  and is also the charge density of a point charge. Actually an operator which projects out a function's value at the origin, it's not really a function at all. For ten points, name this mathematical entity, which is zero everywhere except the origin and is designated by a Greek letter.
[EX A]:
Science