The opportunity cost will be 5 refrigerators.
Explanation:
Opportunity cost is simply defined as the cost of what one forgoes on order to get something else. Opportunity cost occurs due to the scarcity of resources.
The opportunity cost for the country will be 5 refrigerators. This is due to the fact that when the economy moves from A to pmB, there will be a reduction in the 5 refrigerators that are produced by 5.
