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.

deseasie in europe              

the pogroms became known as kristallnacht, the "night of shattered glass," for the shattered glass from the store windows that littered the streets. the morning after the pogroms 30,000 german jewish men were arrested for the "crime" of being jewish and sent to concentration camps, where hundreds of them perished.