Which statement best defines economics?

the study of business management

the study of using natural resources

the study of buying and selling decisions

the study of strategies to lower opportunity costs

will give brainliest

The answer here is:

The study of buying and selling decisions.

Explanation:

Most interactions in a free-market economy are about buying and selling products and services for a profit. Economics studies the processes related to buying and selling and what are the best ways to do it. This definition includes the other actions. Economics is not only about business management but also about goverment macroeconomic and fiscal decisions.

The study of natural resources