He was from the Soninke ethnic group. Askia Muhammad strengthened his empire and made it the largest empire in West Africa's history. ... In addition, Askia established standardized trade measures and regulations, initiated the policing of trade routes and also established an organized tax system.
Answer D is what better explains what happened to George Washington at Fort Necessity , Pennsylvania. After many hours under attack and with many of his men dead or wounded, George Wsahington signed its surrender. This happens to be the only battle in which George Washington surrendered.