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.

Input: Consider Input: 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

Output: Science


Input: Consider Input: This element's only oxidation state is -1, and it is impossible to free from its compounds by chemical means. It is prepared commercially be the same method which Henri Moisson used to isolate it in 1886, and is also found in the mineral cryolite. Its only isotope is the stabe 19 version, and in its gaseous form takes on a pale yellow color. The most electronegative and reactive of the elements, FTP, what is this lightest of the halogens with atomic number 9 and symbol F

Output: Science


Input: Consider Input: This property is present in elements above the horizontal axis in the Bethe-Slater curve, and it only occurs in materials with one or more easy axes. Coercivity and remanence are characteristic properties of materials with this property that increases in discrete steps as shown by the Barkhausen effect. Owing to a (*) hysteresis loop, this property remains in a material even after an applied field is removed, though it disappears when a material is raised above the Curie temperature. Bulk materials with this property consist of domains of aligned spins. Cobalt, but not copper, possesses, for 10 points, what form of permanent magnetism named after iron


Output: Science