How was christianity spread between the time of its founding and 2012; what historical events best explains why this growth may have occurred?

The spread of Christianity was made a lot easier by the efficiency of the Roman Empire, but its principles were sometimes misunderstood and membership of the sect could be dangerous. Although Jesus had died, his message had not. Word of his teachings spread to Jewish communities across the empire.

the correct answer is

d) rocket launcher

i think that the answer is polishing peanuts