Which of the Following Is Correct About Comparative Advantage

Multiple Choice

Which of the following is correct about comparative advantage?

A) Some countries will have a comparative advantage in everything.
B) Having a comparative advantage without an absolute advantage is impossible.
C) A comparative advantage in a good means that the country can produce more of the good than any other country.
D) A country has a comparative advantage in the production of a good if it can produce the good at lower opportunity cost than any other country.
E) None of the above answers is correct.