What happens to the vehicle if the airbag is disabled?

Disabling the airbag significantly alters the vehicle's safety features, but it does not render it inoperable. Instead, the airbag system is a critical component designed to protect occupants in the event of a collision. If the airbag is disabled, it means that the vehicle still operates, but it loses an essential element of its safety system.

Therefore, while it could be understood why one might think of inoperability due to lack of safety features, the key aspect is that the car remains functional without the airbag active. On the other hand, the consequences of disabling an airbag can lead to significant safety risks in a crash scenario.

The other options offered provide insights into the broader impacts of driving a vehicle without an operational airbag. For instance, without proper airbag functionality, it can lead to a decrease in resale value due to potential buyers’ concerns about safety. Disabling an airbag does not affect the vehicle's fuel efficiency, nor does it, in most cases, result in the loss of electrical power entirely. Therefore, while the airbag is an essential safety feature, the vehicle itself remains operable despite its disabling.