Suppose the united states has a comparative advantage over mexico in producing pork. the principle of comparative advantage asserts that
a. the united states should produce more pork than what it requires and export some of it to mexico.
b. the united states should produce a moderate quantity of pork and import the remainder of what it requires from mexico.
c. the united states should refrain altogether from producing pork and import all of what it requires from mexico.
d. mexico has nothing to gain from importing united states pork.