Context: Valentina 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 Valentina decides to go as a superhero. Which result would be a cost?
A. Valentina will give up the chance to wear the costume she is more excited about.
B. Valentina will save some time and money. She won't have to go out and get a new costume.
From the given choices, choose the correct answer and respond with the letter of that choice.

A