Assume the Quantity of Good X Is Measured on the Horizontal

Multiple Choice

Assume the quantity of good X is measured on the horizontal axis and the quantity of good Y on the vertical axis. Initial prices are PX = $5 and PY = $10. The consumer's income is $100. If PY increases to $20, then

A) the budget line will rotate to the left across the horizontal axis, slope remaining constant.
B) the entire budget line shifts to the left with its slope changing from 1/2 to 1/4 (in absolute values) .
C) the entire budget line will shift to the right.
D) the budget line will rotate to the right down the horizontal axis with the slope changing from 1/4 to 1/2 (in absolute values) .
E) the budget line will rotate to the left down the vertical axis with the slope changing from 1/2 to 1/4 (in absolute values) .