So b and D are wrong the answer is A
A primary source is someone who was there at the time the event happioned or an artifact from that time line
secendairy source (sry 4 my bad spelling) is something from after the event or writen from after the event
I think your best shot is probably choice A
<span>Sundiata, Mali's first leader, captured Ghana's capital and reestablished trade routes and gold and salt trade
there, hope that this helps. =)</span>
I would be a bit frighnted, as these new people from a different country came into my country, to raise or expand their social, political and economic policies, I wouldnt know what they would do.. would they take over our land?