One important catalyst for expanding sub-saharan trade was the a. defeat of muslim armies. b. creation of unified states. c. introduction of the camel as a draft animal. d. carving of settlements out of jungles.

c. Introduction of the camel as a draft animal.

The camel make trans-Saharan trade possible due to its tenacity in adverse conditions. As a result, traders were able to move their items without facing much difficulties had they not had them

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explanation:

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well the fact it is basically a peninsula allowed trade to come from many places, thus allowing cultural diffusion to take place. india has seasonal monsoons that merchants travel back and forth from india using the monsoons wind patterns