I’m fairly certain it is C. Separation of power, as the president needs the advise and **consent** of the people listed above.
U.S. Supreme Court Justice Earl Warren delivered the unanimous ruling in the landmark civil rights case Brown v. Board of Education of Topeka, Kansas. State-sanctioned segregation of public schools was a violation of the 14th Amendment and was therefore unconstitutional.
Good history research can be found on history archives. It’s a government website so it would be approved by teachers. I learned a lot from there and just studying :). Hope this helps.
President Johnson decided not to run for re-election. The country was divided over the issue of the Vietnam war.
<span>The government takes a "hands off" approach to businesses</span>