If the marginal social benefit of consuming a good or a service exceeds the marginal private cost (a) a negative externality exists.(b) the market achieves economic efficiency.(c) the sum of consumer surplus and producer surplus is maximized.(d) a positive externality exists.

The correct answer is option D.

Explanation:

An externality can be defined as a situation in which the benefit or cost resulting from an activity is received or incurred by a third person.

A positive externality means a third person receives the benefits of someone else's activities.

If the marginal social benefit earned from the consumption of a good is higher  than the marginal private cost incurred then in that case we can say that a positive externality exists in the market.

People have to pay less but are having greater profit.

whole quiz

1. the sum of all activities involved in getting high-quality products into the marketplace

2.operations

3. the principle of looking at the supply chain as a whole in order to improve the overall flow through the system.

4. produced; performed

5. activities producing tangible products, such as radios, newspapers, buses, and textbooks.

6. activities producing intangible and tangible products, such as entertainment, transportation, and education.

7.   customer focus

8. analyzing a competitor's products to identify desirable improvements

9. the systematic direction and control of the processes that transform resources into finished projects that create value for and provide benefits to consumers.

10. operation management.

your welcome leave a rate and a < 3

answerdemographic;