Final answer:
To make the best decision, ABC Country should determine the opportunity costs associated with manufacturing and exporting each product instead of the other.
Step-by-step explanation:
In order to make the best decision about which product to encourage domestic manufacturers to produce and export, ABC Country should determine the opportunity costs associated with manufacturing and exporting each product instead of the other (Option A). Opportunity cost refers to the value of the best alternative forgone when a decision is made. By comparing the opportunity costs of producing furniture and shoes, ABC Country can determine which product provides a comparative advantage and is more beneficial to produce.