If every resource is used efficiently, country X can make 6 million tonnes of wheat or 2 million tonnes of steel, while country Y can make 4 million tonnes of wheat or 1 million tonnes of steel. From this information, what does the theory of comparative advantage indicate?
- ACountry X should produce only steel.
- BCountry X will not gain from international trade.
- CCountry Y has no comparative advantage.
- DCountry Y will not gain from international trade.