<span>The composition of the Earth and the processes that are changing it</span>
D. The government should be run by the aristocratic leaders
They were more politically motivated
The Crédit Mobilier scandal of 1872-1873 damaged the careers of several Gilded Age politicians. Major stockholders in the Union Pacific Railroad formed a company, the Crédit Mobilier of America, and gave it contracts to build the railroad. They sold or gave shares in this construction to influential congressmen.
The answer is A. Robert Fulton, who, although he wasn't the first one to come up with the steamboat idea, Fulton built the first safe practical model of the steamboat.