Why did many people think that the building of the transcontinental railroad was a federal government project

Many people thought that the transcontinental railroad is a federal project for the main reason that it is planned and funded by the federal government itself. The railroad system is very important to the economic aspect of the country because the transport of goods from the East to West and vice versa becomes a lot faster.

The answer is d. depriving colonists of trial by jury.

Democracy and darwinism would be my answer.