Use the Following to Answer Questions

Multiple Choice

Use the following to answer questions:
Figure: Kristin's Budget Line
-(Figure: Kristin's Budget Line) Look at the figure Kristin's Budget Line. The price of a cup of cappuccino is $3, and the price of an apple is $1. Suppose Kristin initially consumes 10 cups of cappuccino and 30 apples. Then, the price of apples increases to $3 each and the price of cappuccino remains unchanged. As a result of the price change, Kristin's optimal consumption bundle changes, reflected by a decrease in the consumption of both apples and cappuccinos. If Kristin is to maintain the same level of utility as before the price change, she must:

A) increase her income.
B) decrease her income.
C) keep her income the same, since only one good's price changed.
D) increase her income by $2.