It increased their population sizes, since farming could feed more people than hunting and gathering (the method used before the Neolithic Era).
I think the answer is A.Power and dignity
Answer:
As the first Roman emperor to claim conversion to Christianity, Constantine played an influential role in the proclamation of the Edict of Milan in 313, which decreed tolerance for Christianity in the empire. He called the First Council of Nicaea in 325, at which the Nicene Creed was professed by Christians.
Explanation:
