Checks and balances is the answer to this question.
The Europeans found America and they all wanted to claim as much land as possible to extend their territories. This was also the start of the colonization era when many european powers rushed to make as many colonies in America as possible.
Answer:
Protect rights of African-Americans.
Explanation:
The 13th, 14th and 15th amendments to the Constitution, jointly known as the Reconstruction Amendments, were additions to the Constitution between 1865 and 1870, which sought to give rights to those individuals who did not already have them before the Civil War, focusing specially on African Americans. So, these amendments prohibited slavery, defined the acquisition of U.S. citizenship, and gave all men, regardless of color or background, the right to vote in elections.
C I think(the bottom one)
