When in 1619, John Rolfe, a Jamestown tobacco farmer, made a purchase

When in 1619, John Rolfe, a Jamestown tobacco farmer, made a purchase of 20 African slaves in exchange for food supplies to the Dutch it marked

A) the actual introduction of slavery in what is now the United States.
B) the beginning of a period until 1680 when slavery, though still difficult, was less harsh and hopeless than it became after 1680.
C) the cessation of Virginia land owners using captured Indians as slaves.
D) an anomaly of Dutch involvement in the slave trade.

ANSWER
Answer: B