-Rick's Income Is $54 a Week and He Spends All

Multiple Choice

-Rick's income is $54 a week and he spends all of it on CDs and sandwiches. The price of a CD is $18 and the price of a sandwich is $3. The figure above illustrates Rick's preferences. If the price of a CD falls to $6, Rick's consumption of CDs will increase by

A) 1 CD per week.
B) 2 CDs per week.
C) 3 CDs per week.
D) 4 CDs per week.