I believe the correct answer is D
<span>Assuming that this is referring to the same list of options that was posted before with this question, the best option is "exercise" since it can clear the mind. </span>
I think it's the Council of Elders
Answer:
The slave trade had devastating effects in Africa. Economic incentives for warlords and tribes to engage in the slave trade promoted an atmosphere of lawlessness and violence. Depopulation and a continuing fear of captivity made economic and agricultural development almost impossible throughout much of western Africa.
Here are some contrubition they did to the world
Olympic games
Democracy
Hippocratic Oath
Philosophy (Aristotle, Socrates, Plato...)
Ionian, Doric and Corinthian architectural styles
Theatre styles (drama, comedy, tragedy, tragicomedy).
Literary classics (Iliad & Odyssey, myths, fables, poetry and mythology)