Answer:
D. Opportunity cost.
Step-by-step explanation:
Since she could have taken a job and would have earned $62,000, this represents opportunity cost, lost due to the decision of starting her own apparel store. Opportunity cost is the cost of foregone alternative. Therefore, if there are two alternative X and Y, and alternative Y has a benefit of $M, then by choosing alternative X, the decision-maker is giving up a benefit equal to $M, which is the opportunity cost associated with choosing alternative X over alternative Y.