Answer:
The correct answer is option a.
Explanation:
Comparative advantage refers to the situation where an individual, firm, or nation can produce a good at a comparatively lower opportunity cost.
It is given here that,
Hank's opportunity cost of producing a bushel of corn = 2 bushels of soybeans
And,
Tony's opportunity cost of producing a bushel of corn = 3 bushels of soybeans
We see that Hank has a lower opportunity costs in the production of corn. So we can say Hank has a comparative advantage in the production of corn. Or in other words, Hank specializes in the production of corn.