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.

Q: This figure was worshiped on the Island of Philae. In depictions, a throne symbol often lies atop this deity's head. This deity created a snake out of the earth and had it bite Ra so that Ra would give up his True Name. After a long search, this deity found a box hidden in a tamarisk tree. This goddess reassembled the fourteen (*) pieces of her husband and gave birth to Horus, in order that he would defeat Set. For 10 points, name this Egyptian goddess, the wife and sister of Osiris.

A: Social Science
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Q: In 1999, McIlroy created an adversary for this algorithm that guarantees that it will run in worst-case time. Its worst-case runtime can be avoided by switching to heapsort after a certain recursion depth, a construction known as introsort. Like mergesort, it is easily parallelizable, and its runtime can be decreased by first selecting the median of the unsorted input list. It was invented by C.A.R. Hoare, and its second phase is the partition function, which splits the original list into lists of elements that are greater or less than the chosen pivot value. For 10 points, identify this divide-and-conquer sorting algorithm which runs in big O of n log n time, named for its speed.

A: Science
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Q: Extant classes of this phylum of animals include Crinoidea and Stelleroidea. They have a simple nervous system consisting of nerve rings, a rudimentary circulatory system, and no brain, and movement is achieved using a rounded muscular sac called an ampulla. Unique in their posession of a water vascular system and tube feet, their spiny skin gives them their name, and many of them have pentaradial symmetry. FTP, name this phylum which includes sea cucumbers, sea urchins, and starfish.

A:
Science
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