I believe the answer is A but I'm not positive.
Emperor Trajan is a great one
Answer:
id say that safe/connected roads and missionaries helped spread it
Explanation:
1.roads were alot less prone to thieves and stuff making it easier for people to travel from place to place to spread ideas
2.missionaries were a big part in spreading religion because they went to talk to people and draw them to christianity
They became more of a fashionable item. most likely got more expensive so you'd only see the rich wearing shoes and it would show the social classes more easily so it might have made some people feel bad about themselfs. before they were only used to keep your feet from being burned from a hot ground or from getting frost bite in winter.
