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]: This structure does not function correctly in those with Stargardt disease, and certain cells in the capillaries of this structure can cause Scheerer's phenomenon. Muller glial cells found in this structure can dedifferentiate into multipotent progenitor cells, and Tay-Sachs disease is often diagnosed by a red spot on it. This structure receives oxygen from the choroid coat, which separates it from the (*) sclera. This structure's most sensitive region is the fovea, which is located at the center of its macula. Vitamin A is necessary for the function of this structure, which has a "blind spot" where it connects to the optical nerve. Rods and cones are found in, for ten points, which inner layer of the eye that sends optical signals to the brain
[EX A]: Science

[EX Q]: Bloodstone, agate, and onyx are chalcedonic varieties of this mineral. Other color variations arise from substituting atoms for silicon; iron for citrine and amethysts, titanium for the rose variety. When cemented it makes sandstone and when fused, silica glass. For ten points, identify this mineral composed of crystalline silicon dioxide.
[EX A]: Science

[EX Q]: He's not Leonardo, but he was quite a Renaissance man, proposing flying machines and motorized ships. Following Alexander of Hales, whom he heard lecture in Paris, he wanted to expand university courses to include natural science. He proposed the compilation of an encyclopedia, produced under papal direction, and he ended up writing part of another by himself. The first European to describe gunpowder, For 10 points-name this English friar, philosopher and alchemist of the 13th century.
[EX A]:
Social Science