In what way did climate change affect ghana's position in the trans-saharan trading networks?

a. the larger floods of the niger river made consistent trade impossible.
b. the rise in temperature in west africa made insect-born disease more common.
c. the desertification of kumbi saleh made it less important as a trade post.
d. the rise in temperature made food production and gold mining difficult for the kingdoms.

The correct answer is C) The desertification of Kumbi Saleh made it less important as a trading post.

Climate change affected Ghana's position in the trans-Saharan trading networks in that the desertification of Kumbi Saleh made it less important as a trading post.

Ghan was a wealthy nation during the 9th and 11th centuries CE. In those years, the kingdom of Ghana was located in what today is Senegal, Mauritania, and Mali. The had plenty of gold, on where the kingdom based its power. Through the Trans-Saharan trade, Ghana traded salt for god with the Arabs. They also traded ivory and slaves. Climate change affected Ghana's position in the trans-Saharan trading networks in that the desertification of Kumbi Saleh made it less important as a trading post.

its c not d   tell me if that´s correct