Context: Nina is deciding whether to see the tamarins or the vultures at the zoo. She wants to see lots of animals, but the zoo is closing soon.
Suppose Nina decides to see the tamarins. Which result would be a cost?
A. Nina will spend more time walking to the tamarins. They are on the other side of the zoo, but the vultures are close by.
B. Nina will enjoy seeing the tamarins more than she would have enjoyed seeing the vultures.
Select the correct answer from the given choices and respond with the letter of the chosen option.

A