Consumer surplus indicates:

Consumer surplus is a crucial concept in economics referring to the additional benefit that consumers receive when they are able to purchase a product for a price lower than the maximum price they are willing to pay. It measures the difference between what consumers are willing to pay for a good or service and the actual market price they pay.

When consumers find that they can acquire a product for less than their anticipated price, they experience a sense of gain or surplus. This value represents the economic welfare of consumers in a market and indicates a level of satisfaction derived from making a purchase at a lower price. Understanding consumer surplus helps economists analyze market efficiency and consumer behavior, illustrating the benefits of competitive pricing and the advantages that consumers enjoy in a well-functioning market.

The other options do not correctly encapsulate what consumer surplus represents. While dissatisfaction pertains to negative feelings regarding market transactions, consumer surplus embodies positive economic outcomes. Similarly, the total quantity of goods available in the market and overall producer revenue are separate concepts that do not relate directly to the benefit derived from price discrepancies between willingness to pay and actual payment.