Out of all these answers I would pick, A. built a vast network of paved roads. When they added these networks of paved roads, it allowed much easier transport to places and allowed more things to be carried to eventually trade
Answer:
A.built a vast network of paved roads
C.sent its navy to clear the seas of pirates
F.coined silver and gold currency
Explanation:
Trade was expanded by the Romans by building a vast network of paved roads that made transit and transportation of goods possible, they also cleared the sea from pirates and kept the trade routes at sea safe for merchants to travel, and by coining a silver and gold currency trade and prices were more easily set and all people had a standar way of trading.
