Select all the correct answers. which two factors contributed to the spread of islam in africa?
a islam was already practiced by people in africa.
b many africans no longer believed in their own religions
c the islamic empire extended into north africa.
d the gold-salt trade brought islamic arabs into western and southern africab

pick 2

C) The Islamic empire extended into North Africa

D) The gold-salt trade brought Islamic Arabs into western and southern Africa

Explanation:

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Brainliest is appreciated. :D

the completion of the erie canal spurred the first great westward movement of american settlers, gave access to the rich land and resources west of the appalachians and made new york the preeminent commercial city in the united states.

the foundation of greek city-states: following the fall of the mycenaean civilization in the 10th century bc, the area surrounding the empire went through its own mini dark ages. answer and explanation