The correct option is C Islam
Islam is the other major religion in Africa alongside Christianity, with 47% of the population being Muslim, accounting for 1/4 of the world's Muslim population. The faith's historic roots on the continent stem from the time of the Prophet Muhammad, whose early disciples migrated to Abyssinia (hijira) in fear of persecution from the pagan Arabs. The spread of Islam in North Africa came with the expansion of Arab empire under Caliph Umar, through the Sinai Peninsula. Spread of Islam in West Africa was through Islamic traders and sailors.