Match the correct answers from the right with the statements on the left. Note that answers can be used more than once and not every answer must be used. Who can produce more output per unit of input determines A. comparative (absolute or comparative) advantage. B. absolute Who should specialize in and produce what is based on C. cannot (absolute or comparative) advantage. When people, firms and countries specialize and trade, they D. can (can or cannot) consume more than they would be able to produce on their own. Who has the lowest opportunity cost determines who has (absolute or comparative) advantage.