Which is true about africa?
a. apartheid is the official policy of africa
b. europe controls most of african nations today
africa is governed by the imf
d. the sahara desert forms a cultural barrier in africa

d. the Sahara desert forms a cultural barrier in Africa

Explanation:

The vast Sahara certainly plays the role of a cultural barrier, blocking the North-South exchanges on that huge continent.

a. apartheid is the official policy of Africa : today?  False, that ended in 1994.

b. Europe controls most of African nations today.  No, at least not politically.  China is a bigger player in Africa now than most European countries with massive investments.  Most European colonies got their independence 50-60 years ago.

c. Africa is governed by the IMF  IMF is an economic institution, it doesn't control or rule any country.