Context: Kelly is deciding whether to go as a vampire or a superhero to a costume party. She would rather go as a vampire. But she already has a superhero costume.
Suppose Kelly decides to go as a superhero. Which result would be a cost?
A. Kelly will save some time and money. She won't have to go out and get a new costume.
B. Kelly will give up the chance to wear the costume she is more excited about.
Select the correct answer from the provided options and reply with the letter associated with it.

B