In 1887, Congress established a commission to regulate the railroads by passing "The Interstate Commerce Act", which was mainly intended to keep railroad companies from becoming monopolies.
C. Federalism
What is funny, is I'm am learning about this in school too!
The main reason why Alexis de Tocqueville traveled to the united states was to observe American democracy in action, and to take note of what worked and what didn't, as many European countries were going through democratic revolutions of their own.
So, the third one.
3. supernatural signs that Romans and Elizabethans would have recognized as bad omens. (The wife was not in league with the conspirators.) SO I THINK C