Answer: Option (C) is correct.
Explanation:
Opportunity cost is the benefit that is foregone for an individual by choosing one alternative over other alternatives available to him.
If the opportunity cost is lower for an individual then this will benefit him whereas if the opportunity cost is higher then this will not benefit the individuals.
Therefore, the cost of the ticket for this person is the cost of buying food while waiting in the line and the opportunity cost of his time which means that he would spend that time in earning some money income or something else.