Which of the following is an example of marginal benefit?

The correct answer highlights the concept of marginal benefit as it relates to the added satisfaction or utility that a consumer derives from consuming one additional unit of a good or service. In economics, marginal benefit is the increase in utility or satisfaction that results from choosing one more unit of an option; it helps consumers decide whether to consume more of the good based on the additional pleasure or value it provides compared to its cost.

This understanding is foundational in making rational economic choices, as individuals weigh the marginal benefits against the marginal costs when determining their consumption levels. The focus on a single additional unit helps highlight the incremental nature of decision-making in economics, illustrating how consumers calculate the value of their next purchase.

In contrast, total profit from selling goods pertains to overall revenue minus costs, which does not focus on the additional benefit from a single unit. Fixed costs represent the expenses that do not change with the level of output, thus not connected to the benefits derived from consuming additional units. Lastly, average income in an industry provides a measure of financial performance across many entities but does not reflect the incremental utility of consuming goods or services.