試題詳解

6.Suppose the price of Soda is $6 per unit and the price of Chocolate is $3 per unit, and Alice has $30 to spend on these two goods. If Alice maximizes her utility, she should buy X units of Soda and Y units of Chocolate. X equals?
(A)2
(B)3
(C)4
(D)5
(E) None of the above.