Question: For commodities x and y, a consumer's utility function is u(x, y) = x2y. The consumer faces the budget constraint of 2x + y = 15. Based on this information we can conclude that:
A. x and y are complement commodities
B. x and y are independent commodities
C. x and y are substitute commodities
D. nothing, as the provided information is insufficient to conclude anything with certainty.