A and C are exactly correct.
Answer: C is the correct answer
Explanation: Many believed that eastern christians wrongly worshiped religious icon, therefore they were banned by
Leo lll
They wanted cheap employment (from African slaves), raw materials (like timber, minerals, crops, etc.), a ready market for selling their goods and the number of African countries they colonised was a show of power and strength.
Justinian I failed to regain all of the former provinces of the old Roman Empire really from a combination of all these reasons, but the main one was that he made military blunders.