The Main Argument Against Using Trade Restrictions to Retaliate Against

The main argument against using trade restrictions to retaliate against a country that raises its trade restrictions against you is

A) international trade may be further reduced between the two countries and your gains from trade become even smaller
B) war may occur if mutual retaliations get out of hand
C) both countries may find that they have greater access to each other's markets
D) black markets will thrive as entrepreneurs find ways to enter each country's markets
E) population will migrate from one country to the other in search of higher-paying jobs