How did the Roman army help with trade

The Roman army made the roads and sea routes safe for traders. In turn, trade helped the economy grow. People in each area of the empire could sell what they grew or made to people in other areas who could use these goods. They could also buy things that they couldn�t produce for themselves.

Explanation:

i think the answer is the one about environmental and social health.

hope this

we need the chart or check box