The answer should be A) Ideology.
I think what you are looking for is a activation of the <span>sympathetic nervous systems</span>
Slaves first arrived in Mississippi in French ships that came from West Africa where they had bought the slaves, and then brought them to Mississippi to sell/trade. Hope it helps!
<span>-The development of nuclear reactors
</span><span>-The big bang theory
-The movement of the planets
There you go.
(correct me if wrong)</span>