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.

Leon Gambetta attempted to organize one side's defenses in this war, but fled in a hot air balloon. The Treaty of Frankfurt ended this war, in which the Battle of Sedan was fought. One cause of this war was the possibility of Leopold of Hohenzollern gaining the Spanish throne. Another cause of this war was an edited letter between the ambassador of one country in this war and Wilhelm I. That document known as the Ems Dispatch was used to advance the goals of Otto von Bismarck. For 10 points, name this 1870-1871 war between two European nations that led to German unification.
History

The protagonist of this novel throws a snowball at Gerstacker after asking him whether he can drive the protagonist around, to which Gerstacker replies, "What do you mean" A conversation with Pepi, a substitute barmaid, is found in the remaining eighty pages of this work, which were found among its author's papers. The protagonist works as a school janitor after the mayor disregards his letter from Klamm and learning that his services were erroneously requested by the title structure. Ending with Frieda leaving with Jeremiah instead of the protagonist, who still has not heard from Count Westwest about working as a land surveyor, FTP, name this novel about K.s frustrating inability to penetrate the title building, by Franz Kafka.
Literature

A mutation in the enzyme catalyzing the final step of its biosynthesis gives rise to Smith-Lemli-Opitz syndrome, while its presence in plasma is measured by the Lieberman-Burchard test. The SREBP transcription factors are regulated by this molecule. One step of its biosynthesis sees the creation of a certain 2,3-epoxide, which then cyclizes, and it is sometimes stored in chylomicrons. Farnesyl pyrophosphate and squalene are intermediates in that process and that pathway begins with the condensation of three acetyl coAs to yield HMG-CoA, which is reduced to mevalonate. That step is regulated by drugs called statins. For 10 points, identify this ubiquitous steroid that can cause atherosclerosis when bound to lipoproteins.

Science