Answer:
The action of opportunity cost is that is the subjective measurement which could be determined only through the individual, who selects the action.
Step-by-step explanation:
Opportunity cost is the cost or an expense or the value of the next best possible thing which the person or an individual gave up whenever make or take a decision.
In short, it is the loss of the gain that is potential from the other alternatives which are available when an individual or person selects the alternative.
Therefore, the action of the opportunity cost is the cost which is the subjective measure, that could be determined only through individual, who selects the action.