Final answer:
Tire failure, brake failure, and loss of power steering are all types of vehicle emergencies. Therefore, the correct option is b. Vehicle emergency.
Step-by-step explanation:
Tire failure, brake failure, and loss of power steering are all types of vehicle emergencies. These situations can occur due to various reasons such as mechanical issues, lack of maintenance, or external factors like road conditions. For example, tire failure may happen due to a puncture in the tire or worn-out treads, brake failure can occur if the brake system is not functioning properly, and loss of power steering can happen if there is a problem with the power steering system.