What was the name of the 18th and 19th century trade route shown in the map above?

you didnt show the " map above " how are we supposed to answer this ish

lies are not protected speech because they have no social value.

the answer is:

c. islam and christianity

explanation:

islam and christianity are widely practiced in africa. islam is practiced due to its spread from the middle east into africa, and christianity is practiced due to the colonization of africa by the british empire.