Which of the Following Is Correct with Respect to Absolute

Which of the following is correct with respect to absolute and comparative advantage?

A) Brazilian coffee beans are a good example of comparative advantage.
B) Absolute advantage exists when a country can produce something more cheaply and/or of higher quality than the next three most efficient countries.
C) A country has a comparative advantage when it can produce a product more efficiently or better than most (but not all) other countries.
D) All countries have a comparative advantage in some products.
E) All of these.