B. Internal conflicts. Both of them were weakened by attacks and internal rebellion. The Mali lost it's hold on the Gold and Salt trade. The Songhai empire was then able to grow in power and take previously held Mali territories
The Xiognu brutally conquered other nomadic tribes, often killing their leaders and forcibly incorporating them into the Xiongnu state. This created resentment among the various conquered peoples, which, coupled with some uncertainty regarding an heir to the throne, led to a civil war in the Xiongnu state from 60-53 BC.
<span>the votes of 3/5 of the southern states would be needed to pass any federal legislation affecting slavery.</span>
Answer is D, by Vincent van Gogh
It refers to a period of conflict.
@ Google answer.