Which statements about Songhai are correct? Choose all answers that are correct.

A) During the reign of Askia Muhammad, the Songhai empire reached its greatest size.

B) Mansa Musa developed Songhai’s trade with Islamic empires to the north.

C) Songhai leader Sunni Ali conquered Mali and destroyed the city of Timbuktu.

D) Leo Africanus was Songhai’s ambassador to Cairo, Egypt.