The answer would be A, it fostered a sense of national cultural conformity.
I’m fairly certain it is C. Separation of power, as the president needs the advise and **consent** of the people listed above.
The Jim Crow era directly followed the Reconstruction period in the United States history. The name Jim Crow comes from a white actor who portrayed a dim witted black slave in the 1830's. Jim Crow is used to describe segregation laws, customs, etc.
It should be the third choice
That he was the reason for the watergate scandal
