If Country a Has an Absolute Advantage Over Country B

If country A has an absolute advantage over country B in the production of good X, then:

A) the opportunity cost of producing X in country A is lower than in country B.
B) the opportunity cost of producing X in country A is higher than in country B.
C) good X can be produced in country A using fewer inputs than in country B.
D) good X can be produced in country B using fewer inputs than in country B.