Why do refrigerators typically have lights that turn on when you open the door, but freezers do not? Your response should apply economic principles (e.g., comparative advantage, opportunity cost, cost-benefit principle) to answering one of the above questions. Your answer does not need to be correct in that it fully explains the question. Instead focus on creating an intelligent hypothesis that could potentially be tested and refined. Also avoid using technical jargon for the sake of being technical. Your response should be able to be read and understood by an intelligent individual with no training in economics