Which of the Following Utility Functions Represent Preferences of a Consumer

Multiple Choice

Which of the following utility functions represent preferences of a consumer who does not have homothetic preferences?

A) U(x, y) = xy.
B) U(x, y) = x + 2y.
C) U(x, y) = x + y^.5.
D) U(x, y) = min{x, y}.
E) More than one of the above.