问题详情

The main purpose of the first paragraph is ______.
A．to describe the heroic and successful struggle for independence waged by the slaves of St. Domingues
B．to show how huge numbers of Africans populated the Americas
C．to show that Africans had a vital part to play in laying the foundations of the American republics
D．to describe the horrors of the overseas slave trade请帮忙给出正确答案和分析，谢谢！