Answer: C
Explanation: According to Arab oral tradition, Islam first came to Africa with Muslim refugees fleeing persecution in the Arab peninsula. This was followed by a military invasion, some seven years after the death of the prophet Mohammed in 639, under the command of the Muslim Arab General, Amr ibn al-Asi.
Farmers were the ones that benefited greatly from the discovery and invention of the barbed wire. It effectively helped them take care and grow more cattle as it prevents escape in an extremely effective way, and it also prevented others from stealing livestock at that time.
Rome got to big and couldnt handle rebellions and invasions
Its just the atomic bombing of Hiroshima
