Consider the Income and Substitution Effects Corresponding to an Increase

Multiple Choice

Consider the income and substitution effects corresponding to an increase in the price of X.Which of the following are not possible?

A) The substitution effect on X is positive and the income effect is negative.
B) The substitution effect on X is positive and the income effect is negative
C) The substitution effect on Y is negative and the income effect on X in negative.
D) The income effect on both goods is positive.