Context: Sidney is deciding whether to eat string cheese or vanilla custard for an afternoon snack. She would like to eat something tasty, but she is also trying to be healthier.
Suppose Sidney decides to eat the string cheese. Which result would be a cost?
A. Sidney will get to eat the string cheese. The string cheese will be healthier than the vanilla custard would have been.
B. Sidney will give up the chance to eat the vanilla custard. Sidney thinks vanilla custard would have tasted better than string cheese will.
Identify the correct choice from the options below and respond with the letter of the correct option.
Answer: B