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]: Imetelstat, a potential new cancer therapy agent, works by targeting the enzyme that repairs these   structures. Blackburn, Greider, and Szostak received the 2009 Nobel Prize for determining the role of  these structures, which typically adopt a G-quadruplex shape. The shortening of these structures   explains the Hayflick limit to cell division and is the basis for the cellular theory of aging, and that  shortening of these structures can lead to cell senescence or apoptosis. Consisting of thousands of  TTAGGG repeats in humans, name these end sequences of chromosomes that prevent genes from  being lost during DNA replication.
[A]: Science


[Q]: General Herr, who had raised the alarm prior to this battle about the decision to remove all emplaced guns smaller than 75mm, spent most of it in the Caures Woods following the "Trommelfeuer. " Historical debate exists about the veracity of the "Christmas Memo" of Falkenhayn regarding this battle, which saw a heroic stand at Fort Souville. It saw a massive supply operation from Bar-le-Duc along the (*) "Sacred Way," and turned when Robert Nivelle crucially recaptured Fort Douaumont. The Somme offensive was partially launched to relieve this attack, which saw the Germans pushed back to the banks of the Meuse. Lasting nearly a year across 1916, FTP, identify this World War I battle occuring at a site that also names an 843 treaty which divided Charlemagen's empire.
[A]: History


[Q]: "Toy" and "toe" are two orthologs of the PAX6 gene in Drosophila named for their influence on the development of these structures. In insects and millipedes, these structures are made of clusters of hexagonal ommatidia, and rhodopsin is a pigment found in these organs. The(*) hyaloid canal passes through the vitreous humor in this organ, and rods and cones are specialized neurons found in the retina in this organ. For 10 points, name this organ in which the iris controls the passage of light through the pupil and toward the lens.
[A]:
Social Science