Hi!
Your answer would be <span>B. Tariff is Import and Quota is Export
</span>Tariffs are taxes posed upon goods that are imported.
Because many other people spoke different languages then others which was hard.
I don’t know if you mean why did so many Germanic tribes begin invading the Roman Empire? They were fleeing the Huns, who had moved into their lands and began destroying everything. When they were running away from the Huns, the Germanic people moved through the Roman provinces of Gaul, Spain and North Africa.