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]: Gravitational redshift was measured by Pound, Rebka, and Snider in Harvard's Jefferson Tower using this technique to detect a frequency shift of order one part in ten to the 14th. It can be used for precise studies of the Zeeman effect in nuclei. Iron 57 and tin 119 are two of the isotopes used in this type of spectroscopy due to narrow linewidths in their transitions. Before this technique, the large size of Doppler shifts relative to transition widths made nuclear spectroscopy problematic. It was discovered by its namesake when he was a graduate student at the Munich University of Technology. FTP, what is this effect in which a crystal lattice reduces recoil energy
[EX A]: Science

[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]: This war is the setting of a story which ends with a man callously shouting "Victory! Victory!" near a woman kneeling between the bodies of her husband and her father. In another story about this war, a watchmaker and a haberdasher cry and shake hands before being executed for refusing to give the password that let them access their favorite fishing spot. The collaborative collection Evenings at Medan consists of stories about this war, including "The Attack on the Mill. A soldier in this war exclaims "Let us explode a mine!" before destroying priceless paintings and porcelain in an (*) abandoned mansion, in a story whose heroine rings a long-silent bell after stabbing the title character with a cheese-knife. In the best-known story about this war, a woman who offers food from a picnic basket is coerced into sleeping with an officer so that a stagecoach can continue on to Le Havre. For 10 points, name this war, portrayed realistically in "Two Friends," "Mademoiselle Fifi," "Ball of Fat," and other stories by Guy de Maupassant.
[EX A]:
Literature