The trading centers in the sahel region connected the regions of and
a. asia . . africa
b. africa . . europe
c. the mediterranean . . asia
d. europe . . north america

The correct answer is letter B. The trading centers in the Sahel region connected the regions of Africa and Europe. It's a vast land that has a semi-arid climate that stretches along the latitudes of Northern Africa. Sahel means "shore, coast," which briefly describes the transition of the Sahara desert and this region.

There is no map, maybe give the link, it may be b

Answerhighlands and forests;