Who was responsible for opening up trade with africa in ivory gold and slaves

A.

Vasco da Gama

B.

Prince Henry the Navigator

C.

Ferdinand Magellan

D.

Christopher Columbus

I say it is a because I remember it from 6th grade

A. Vasco da Gama

Explanation:

The exploration of shared interests proceeded on the once secluded Atlantic side of the landmass, where African elites looked for imported products, even as their fares comprised increasingly more of slaves; obtained office in European dialects; and tried different things with Christianity and Western training. On the Indian Ocean side, there were not many long haul changes, regardless of early Portuguese assaults on the effectively prosperous, Muslim-ruled city-states of the Swahili coast.