Christianity became the established state religion of the Roman Empire a. as a direct result of barbarian invasions. b. when pagan priests invoked Jesus to take Jupiter's place. c. in the first century C.E. d. when Constantine converted to christianity, followed by Theodosius' banning of other religions. e. by miraculous conversions of all soldiers in 390.

Respuesta :

In the Roman Empire, the Christianity became the established state religion when Constantine converted to Christianity after Theodosius' banned other religions.

How did Christianity become the Roman official religion?

Emperor Constantine established the Christianity freedom of religion in the Edict of MIlan and made it the official Roman religion.

Hence, the Christianity became the established state religion when Constantine converted to Christianity after Theodosius' banned other religions.

Therefore, the Option D is correct.

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