What is the definition of marginalutility?

A.

Utility measured in utils.

B.

The change in utility from consuming an additional unit of a good or service.

C.

The utility from consuming a good or service divided by the number of units of that good or service consumed.

D.

The enjoyment or satisfaction people receive from consuming goods and services.

E.

The average utility from consuming a good or service multiplied by the number of units of that good or service consumed.