Identify and explain three factors that lead to the Roman Empire’s decline in the fourth century CE

Please provide the best answer for the statement.

1. Rome was invaded by Goths, Visigoths, and Huns.
2. Rome’s large borders became increasingly difficult to defend.
3. Morality was on the decline, as symbolized by the self-indulgence of the baths.
4. As Christianity grew in popularity, Roman rulers faced problems maintaining the population’s loyalty.