It's A. Granting unrestricted Freedom to All Religions
This came to be known as the American System developed by Henry Clay
"<span>Slave labor helped the economy grow because it was taxed," would be the best option from the list, but it had less to do with taxation and more to do with free labor. </span>
The Nile River
The Tigris and Euphrates Rivers
Hope that helps :)
First one because the civil rights act was to make everything actually equal for once