Sadie Has Just Eaten a Donut That Gave Her a Utility

Multiple Choice

Sadie has just eaten a donut that gave her a utility of 6. If she chooses to eat another donut, we can assume that:

A) she will receive an increase in utility of more than 6 from the additional donut.
B) she will receive a decrease in utility from the additional donut.
C) she will receive an increase in utility of less than 6 from the additional donut.
D) her total utility will fall because of diminishing marginal utility.