Answer:
When economists refer to the “opportunity cost” of a resource, they mean the value of the next-highest-valued alternative use of that resource. If, for example, you spend time and money going to a movie, you cannot spend that time at home reading a book, and you can't spend the money on something else.
The cost of making a choice is that the next best alternative is forgone. This is know as opportunity cost. For example if a Government decides to make the choice of devoting more resources to the NHS then the opportunity cost is devoting those resources into the education system.
Bets i got ;0