Jon's Income-Consumption Curve Is a Straight Line from the Origin

Multiple Choice

Jon's income-consumption curve is a straight line from the origin with a positive slope. Now suppose that Jon's preferences change such that his income-consumption curve remains a straight line but rotates 15 degrees clockwise. Jon's demand curve for the good on the horizontal axis

A) will shift left.
B) will shift right.
C) will not change.
D) might do any of the above.