Juan Garcia devotes all of her income to the consumption of two goods, ice creams and chewing gums. She has just discovered that at her current level of consumption she spends all her money and, moreover, the marginal utility of an ice cream is 30 and the marginal utility of a chewing gum is 5. Suppose the price of an ice cream is $2.0, while the price of a chewing gum is $0.2. Then, Sally should
a. reduce her consumption of ice creams and keep the consumption of chewing gum unchanged
b. reduce her consumption of ice creams and the consumption of chewing gum
c. reduce her consumption of ice creams and raise the consumption of chewing gum
d. consume only chewing gum