Why, Beginning in the Mid-1660s, Did Chesapeake Planters Begin to Purchase

Multiple Choice

Why, beginning in the mid-1660s, did Chesapeake planters begin to purchase more African slaves?

A) They could no longer obtain an adequate supply of white indentured servants.
B) The price of slaves dropped as more and more were imported from Africa.
C) It became clear that Native Americans could not be used successfully as slaves.
D) It became necessary for white indentured servants to serve in the militia to defend against Indian attacks.