What problem developed because colonial boundaries in Africa ignored ethnic and cultural divisions? O A. It left the colonies with unbalanced economies because each culture had different ways to trade goods.
OB. The colonies had to proclaim more than one official language because of the different ethnicities present
C. It created an immigration problem for all of the colonies.
D. A sense of national identity was difficult to develop because borders divided peoples of the same background or threw different, often rival,
groups together

D

Explanation:

This problem can Actually be seen today with the many active civil wars in africa like the ones between Sudan and south Sudan because many groups who actually hated each other were forced to be "one country" by a colonial power.

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.