Sharon Has Eaten a Lot of Pizza in the Past

Multiple Choice

Sharon has eaten a lot of pizza in the past few years.In fact,she's growing tired of pizza.Recently,she realized that pizza no longer brings her the same satisfaction,falling from 12 utils to 7 utils.Benefiting from higher productivity,Sharon's favorite pizzeria also lowered prices from $2 to $1 per slice.What happens to Sharon's marginal utility per dollar spent?

A) It increases.
B) It decreases.
C) It stays the same.
D) The rate of change decreases.
E) There is not enough information to determine.