What was economic effect of Roman conquest?

The effect of the growth of the empire was the influx of massive amounts of wealth into Italy. Soldiers deserted to join enemy armies attacking Rome. Trade routes fell into disuse throughout the Republic.  The predominant factor driving both social and economic policies for the Republic as a whole.

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Explanation:

it is the dominance of   the spanish language and roman catholic region in mexico, french being the official language of several african countries, and the existence of a western-style government in south asian countries

i also think it is c