Which aspect of the roman empire aided in the spread of christianity?
a-there were many roads and waterways, and travel was safe.
b-persecution only occurred in the very early days of the church.
c-most areas of the empire were tolerant of different religious beliefs.
d-christian leaders negotiated with roman officials to stop persecution.

A-There were many roads and waterways, and travel was safe.

Explanation:

The economy of the Roman Empire was that of a slave empire; the slaves worked, obviously without any remuneration, which produced enormous wealth. The different cities and provinces were connected by a network of communications, roads and ports, which promoted commerce remarkably. This great network of roads throughout the empire, helped to form a common culture, this added to the end of the persecution of Christians, helped to spread the religion throughout the impoerio.

the russian revolution of 1917 involved the collapse of an empire under tsar nicholas ii and the rise of marxian socialism under lenin and his bolsheviks.