Final answer:
Opportunity cost is the value of the next best alternative that one gives up to obtain what they desire.
Step-by-step explanation:
The concept of opportunity cost is described in the following statement:
Opportunity cost is the value of the next best alternative.
It represents the cost of one item in terms of the lost opportunity to do or consume something else. It is the value of the best alternative forgone in making any choice. For example, if you choose to spend money on a movie ticket, the opportunity cost would be the value of the next best alternative use of that money, such as buying a book or going to a concert.