The Long-Range Impact of a Muslim Invasion of Northern Sub-Saharan

The long-range impact of a Muslim invasion of northern Sub-Saharan Africa in the sixteenth century:

A) Strengthened the drive toward centralization in the area as societies organized for war.
B) Brought empire-building in the northern Sub-Saharan African societies to a halt.
C) Caused the societies in the savanna region of Central Africa to scatter and decentralize.
D) Put most of Africa under Sharia law.