The majority of people in north africa practice and speak a. islam . . arabic b. islam . . berber languages c. christianity . . arabic d. christianity . . berber languages

I believe the answer is A. Islam & Arabic.

explanation:

with the profits from the european sales, merchants purchased europe's manufactured  goods, including tools and weapons. then the merchants shipped those manufactured  goods, along with the  american  sugar and rum, to west africa where they were bartered for  slaves.

answer; correlational;