Freddy has eaten three corn dogs at the county fair,and if he eats another,he will get sick on the roller coaster.Knowing this,and ignoring any impact that price might have on his decision,we can say that,for the fourth corn dog,the:

A) total utility is less than zero.
B) marginal utility is less than zero.
C) total utility curve is still increasing.
D) marginal utility curve is still increasing.

According to the law of diminishing marginal utility, as a person consumes more of a good, the marginal utility (additional satisfaction from consuming each additional unit) will eventually decrease. In this case, Freddy has already consumed three corn dogs and if he eats a fourth, he will get sick. Therefore, the marginal utility of the fourth corn dog is likely to be negative, meaning it will provide less satisfaction than the previous corn dogs. Thus, choice B is the best answer.