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]: In one painting with this name, a man in red with his hand extended behind his back heads toward the main figure, who is collapsed on the ground; that painting is by James Barry. On the left side of this painting, a red-clad runner approaches the scene waving his hat in his left hand and holding a flag in his right. The two rightmost people in this painting both look at the title figure with their hands (*) clasped. The figures in this painting are depicted wearing contemporary clothing, despite Joshua Reynolds' insistence that the artist dress them in classical clothing. A native American in a pose similar to The Thinker is looking at the title figure of this painting. For 10 points, name this painting of the final moments of a British general by Benjamin West.
[EX A]: Fine Arts

[EX Q]: One variant of this phenomenon can be used to tune the electronic properties of boron nitride nanotubes from nearly insulating to metallic. Another variant of this phenomenon is induced by interference of standing laser waves to trap atoms of a Bose-Einstein condensate loaded into an optical lattice. Schrdinger's third article from his 1926 series of papers presented his perturbation theory treatment of this effect's modification of the Balmer and Lyman series. Along with van der Waals broadening and resonance broadening, this effect can produce pressure broadening of spectral lines. In addition to the giant version and the AC or Autler-Townes form of this effect, it exhibits variants that are linear and quadratic in the applied field. FTP name this shifting and splitting of spectral lines due to an external electric field, the analogue of the Zeeman effect.
[EX A]: Science

[EX Q]: Archael methanogenesis relies on an enzyme that contains this metal in a tetrapyrrole, known as F430. This element is present along with iron and sulfor in pentlandite, and it also occurs in kamacite and taenite, which are found in meteors. Like calcium, this element's 48 isotope is doubly magic. It is present in the active site of prokaryotic glyoxylase, while Helicobacter pylori can be detected by using a rapid test for an enzyme containing this metal, urease. Columns of it are used to purify polyhistidine-tagged proteins, and this metal is purified by carbonylation in the Mond process. Another compound containing this metal is used to transform thioacetals to alkenes, and is created by adding NaOH to an alloy of this metal and aluminum. For 10 points, name this metal found in Raney's catalyst, with atomic number 28 and symbol Ni.
[EX A]:
Science