Answer:
The correct answer is letter "B": the market price is below what some consumers are willing to pay for the product.
Explanation:
Consumer Surplus is an economic indicator of customer satisfaction, measured by analyzing the difference between what consumers are willing to pay for a good or a service, compared to the market price. A consumer surplus happens when a buyer is willing to pay more than the current market price for a given item.
Consumer surplus is not a concrete surplus since it does not produce extra income for customers. It is a good feeling to get a better deal than expected.