Answer: Option (c) is correct.
Explanation:
Given that,
Alternatives for a person if he do not attend his neighbor's barbecue:
(1) Watch television with some friends = he value this at $17
(2) Read a good novel = he value this at $14
(3) Go in to work = he could earn $16 during the barbecue
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 opportunity cost of going to his neighbor's barbecue is the enjoyment he get from watching television with some friends because this is the highest valued alternative forfeited.