If Consumption of Y Is Depicted on the Vertical Axis

Multiple Choice

If consumption of Y is depicted on the vertical axis and consumption of X is depicted on the horizontal axis, a parallel inward shift in the budget constraint occurs when:

A) prices for both X and Y fall by a given percentage.
B) the relative price of X rises.
C) the relative price of Y rises.
D) prices for both X and Y rise by a given percentage.