Which statement best defines opportunity cost?

• A. The monetary price paid for a good.
• B. The utility gained from a good.
• C. The real cost of what you must give up to obtain it.
• D. The social prestige gained from owning it.

Answer: (C)

Opportunity cost is about what you give up when you make a choice—the value of the next-best alternative you forgo. The best definition says it’s the real cost of obtaining something because it captures the sacrifices involved, not just the money spent.

For example, if you spend time and money to attend a concert, the opportunity cost includes the enjoyment and opportunities you passed up by not doing something else with that time and money—like working, studying, or saving for the future. It’s the value of the best alternative you chose not to take.

Money paid is only part of the picture, and the satisfaction you gain from the chosen item isn’t the opportunity cost itself. Social prestige can be a benefit, but opportunity cost is specifically about the foregone alternatives and their value, not just the price or the utility gained.