the correct answer to this question would be d. Many African Americans were essentially returned to a state of slavery.
In other words to answer this question, a form of slavery is people being forced to work at little to no pay. Therefore since people could be legally forced to work, this is considered a form of slavery.
Discovery of new things, increased pope's political powers, further spread the teachings of Christianity.
Ans: Under the Constitution, the House of Representatives has the power to impeach a government official, in effect serving as prosecutor. The Senate has the sole power to conduct impeachment trials, essentially serving as jury and judge. Since 1789 the Senate has tried 20 federal officials, including three presidents.
Prevented spread of communism