What Significant Action Did the English Privateer John Hawkins Perform

What significant action did the English privateer John Hawkins perform in 1562?

A) He became the first person to introduce African slaves to an English colony in the Americas.
B) He convinced the Spanish king to award him the asiento de negroes,the exclusive right to sell African slaves in the Spanish colonies.
C) He introduced the sugar crop to the Caribbean,thereby creating an immensely profitable enterprise.
D) He instigated a long-term English effort to smuggle African slaves into the colonies of Spanish America.