How were the West African kingdoms involved in the slave trade? A. They bought slaves from the Europeans.
B. They wanted to bring Native Americans to Africa.
C. They sold other Africans to slave traders.
D. They fought against the American slave traders.

C. They sold other Africans to slave traders

Explanation:

I hope this helps

roosevelt believed that in light of the country's recent military successes, it was unnecessary to use force to achieve foreign policy goals, so long as the military could threaten force. this belief, and his strategy of “speaking softly and carrying a big stick,” shaped much of roosevelt's foreign policy.

google it and it will pop up