Scenario 18-3 Gabrielle Has Two Jobs, One for the Winter and One

Scenario 18-3
Gabrielle has two jobs, one for the winter and one for the summer. In the winter, she works as a lift attendant at a ski resort where she earns $16 per hour. During the summer, she drives a tour bus around the ski resort, earning $11 per hour.
-Refer to Scenario 18-3. During the winter months, what is Gabrielle's opportunity cost of taking an hour off work to go enjoy some leisure time?

A) $16
B) Between $11 and $16
C) $11
D) Less than $11