How Did Slaves' General Health Compare with the Slave Populations

How did slaves' general health compare with the slave populations in the rest of the New World?

A) American slaves' health was much worse, since masters gave them inadequate diet, and medical knowledge was so poor.
B) American slaves' death rates were generally much worse than both white southerners' and other slaves' death rates.
C) American slaves' health was generally better - they were the only slave group to grow through natural reproduction.
D) Generally about the same as other slave groups, since they all practiced the same folk remedies for illness.