Which of the Following Is Not True About Overbooking by Car

Which of the following is not true about overbooking by car rental companies?

A) It is a crime.
B) Some states impose fines for overbooking.
C) Many car rental companies will voluntarily compensate a traveler whose car reservations could not be filled and who rented from another company at a higher price.
D) The unavailability of a reserved car constitutes a breach of contract.