The Songhai people practiced both islam and traditional spiritual beliefs, christianity and traditional spiritual beliefs, Hinduism and traditional spiritual beliefs, Buddhism and traditional spiritual beliefs. Which of this 4 is correct?

The majority of Africans are adherents of Christianity or Islam. African people often combine the practice of their traditional belief with the practice of Abrahamic religions ... They have both spread and replaced indigenous African religions, but are often adapted to African cultural contexts and belief systems.