C. by race
the policy of apartheid separated them by race in south africa
Answer:
economic interests, cultural values, the power of the federal government to control the states, and, most importantly, slavery in American society.
Explanation:
The United States assisted revolutionaries in those countries. (apex)
Montgomery bus boycott, mass protest against the bus system of Montgomery, Alabama, by civil rights activists and their supporters that led to a 1956 U.S. Supreme Court decision declaring that Montgomery's segregation laws on buses were unconstitutional. The 381-day bus boycott also brought the Rev.(Britannica.com)
A - The Articles of Confederation