Help? I DID NOT READ ANY OF THE TEXT XD

Which of the following was a key accomplishment of the people of songhai? a. they had a strong military and became the largest empire in west africa. b. they established a center of islamic scholarship. c. they worked with iron and prospered from the gold-salt trade. d. they dominated in the trade of ivory, enslaved people, and animal skins.

Which statement best completes the diagram of the ways the different branches of government can limit each other's powers?

The process of getting information out of memory is called