Indentured servants agrees to work in exchange for what A.payment of their debts
B.freedom
C.gold
D.passage to the colonies

Imports improved Roman infrastructure.

Explanation:

The Roman Empire was known for quality infrastructure. Throughout the empire, even in the most remote parts, there was infrastructure. This has undoubtedly contributed to a faster and better flow of goods, which has contributed to the growth of the Roman economy. In many parts of the empire in which Rome once had its rule (for example the Balkans), there are still remnants of Roman infrastructure today, which speaks volumes about the quality of roads and bridges the Romans built. The Romans invested their infrastructure infallibly, knowing that they would pay back that investment many times over.