Answer:
D. general decrease in wages
Explanation:
The free market is ruled by the supply-demand law, this means that the more the offer, the lesser the cost, and the less the offer the higher the cost, as well for demand, so when there is a significan increase in the offer in the workforce, wages tend to go down because there is more people willing to fo the job for less money. So immigration can result on a general decrease in wages.
