If You Receive the Same Amount of Satisfaction from a Grocery

If you receive the same amount of satisfaction from a grocery store's house brand soda as you do from a popular name brand soda that costs twice as much, to maximize satisfaction you should drink:

A) the house brand soda.
B) equal amounts of each.
C) one-half as much as you normally do, but drink the name brand soda.
D) neither one since you cannot arrive at a perfect relationship between them.