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.

A major development of this historical event was the publication of letters written to Henry McComb. It began when Thomas Durant and other stockholders organized a company under an existing charter which soon assigned contracts to seven trustees. The reputations of congressmen James Brooks and James Patterson and Vice President Schulyer Colfax were ruined when it was revealed that they had been given stock in a company run by Oakes Ames. FTP, what was this scandal involving a scheme surrounding the construction of the Union Pacific Railroad
History

The beneficial type of this concept would be produced by such factors as the development of an AIDS vaccine, a better educational system, or a more efficient highway system. Costs of this type are not factored into the GDP; therefore, the GDP overstates economic welfare. FTP, name this economic concept in which a third party is affected by production or consumption of a commodity.
Social Science

The Tano Sulcus bisects part of this bodys surface. Its motion is technically anti-synchronous with respect to the object it orbets. Found by William Lassell, its so-called cantaloupe terrain is probably caused by cryovulcanism and its atmosphere consists largely of hydrocarbons, including methane. For ten points, name this largest moon in the solar system with a retrograde orbit, the most massive moon of Neptune.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Science

