While at the Grocery Store, Sidney Sees That the Price

Multiple Choice

While at the grocery store, Sidney sees that the price of Grape-Nuts is twice that of Cheerios. If Sidney buys both goods, then Sidney must:

A) get twice as much marginal utility from Grape-Nuts as from Cheerios.
B) get twice as much marginal utility from Cheerios as from Grape-Nuts.
C) not be maximizing utility.
D) buy twice as much Cheerios.