9. If resources and goods are free to move across states, and if Florida producers choose to specialize in growing grapefruit and Georgia producers choose to specialize in growing peaches, then we could reasonably conclude that

a. Georgia has a comparative advantage in producing peaches.

b. Florida has a comparative advantage in producing peaches.

c. the opportunity cost of growing peaches is lower in Georgia than in Florida.

d. the opportunity cost of growing grapefruit is lower in Florida than in Georgia.

e. all of the above except b are true.