The Simple Supply-Side Model of International Migration Shows That Migration

The simple supply-side model of international migration shows that migration:

A) alters the labor-to-capital ratios in the source and destination countries.
B) does not affect the incomes of owners of other factors in both the source and destination countries.
C) can be very beneficial to the immigrants and the source country.
D) will cause a loss of total national welfare in the destination country.