Answer:
The correct answer is C
Explanation:
Economies is the study of how the society uses the resources which are limited and it deals with the consumption, production as well as distribution of the goods and services.
And under the economics the cost of something like or product is defined as what the person give up in order to get something.
For example, a person wants to purchase to product, he needs to give up the money against it in order to have the product or item with him.