Answer the Question on the Basis of the Following Marginal

Multiple Choice

Answer the question on the basis of the following marginal utility data for products X and Y. Assume that the prices of X and Y are $4 and $2, respectively, and that the consumer's income is $18. What quantities of X and Y should be purchased to maximize utility?

A) 2 of X and 1 of Y
B) 4 of X and 5 of Y
C) 2 of X and 5 of Y
D) 2 of X and 6 of Y