If the U$.$S$.$ focuses only on making corn, it can make $200$ tons per day; if it focuses only on making coffee, it can make $40$ tons per day. If Brazil focuses only on making corn, it can make $20$ tons per day; if it focuses only on making coffee, it can also make $20$ tons per day. Assume all PPFs are straight lines.

Which country holds a comparative advantage in making coffee?

Question $15$ options:

a$)$

Brazil

b$)$

U$.$S$.$