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]: In a Gustave Caillebotte painting named for one of these objects, a dog walks by a man who holds his\n head in his hands. Silvano Vinceti claimed that the numbers two and seven were hidden in one of these\n objects in the background of the Mona Lisa. The title fireworks show of James Whistler's Nocturne in\n Black and Gold takes place over one of these objects. One of these objects named "Maidenhead" is thought\n to have inspired the one J.M.W. Turner painted in Rain, Steam and Speed. A Japanese inspired structure of\n this type at Giverny was often painted alongside water lilies by Claude Monet. For 10 points, name these\n structures which Canaletto often painted crossing the canals of Venice.
[A]: Fine Arts


[Q]: The Fraunhofer lines of the Sun's electromagnetic spectrum contain a D-line, sometimes known as a ""doublet,"" produced by transitions in this element's family but traditionally named after this element. This metal is currently made using the Downs Cell. When it is used as a coolant in nuclear reactors, the radioactive 24 isotope of this element is formed. It produces a bright (*) yellow flame when heated. This is the second-lightest alkali metal after lithium. For 10 points, identify this metal whose chloride is table salt.
[A]: Science


[Q]: It is not serotonin, but the selective reuptake of this compound is inhibited by tiagabine, and it is converted to succinic acid semi-aldehyde, which is subsequently oxidized to succinic acid in the shunt which produces this compound. One receptor for it forms a heteropentameric complex and in immature neurons, this compound facilitates the outward flux of chloride ions, which is why benzodiazepines are ineffective anticonvulsants in newborns. One receptor for it includes a benzodiazepine binding site, and isoguvacine THIP, and muscimol serve as competitive agonists to this molecule. Synthesized by the decarboxylation of glutamic acid, this neurotransmitter is best known for its role as the chief inhibitory neurotransmitter. For 10 points, identify this neurotransmitter, which is often referred to by its four letter acronym.
[A]:
Science