I think the answer to this common problem in Mali and Songhai is,
Conflicts over leadership weakened the military.
Other choices are untrue about trade, civil wars, and famine.
I hope this helped you answer the problem that you have posted. Have a great day!
The first sewing machines were powered by hand or foot, manually. It wasn't until 1755 when the first mechanical sewing machine was created.
I believe it is option C
Hope this helps