What action should you take if you experience a tire blowout?

Answer: B — Grip the steering wheel firmly

When experiencing a tire blowout, gripping the steering wheel firmly is crucial for maintaining control of the vehicle. This action helps you steer the car safely as it may pull to one side due to the sudden loss of tire pressure. A firm grip allows you to keep the vehicle stable and reduce the risk of losing control, which can lead to a more dangerous situation. In contrast, braking hard could exacerbate the situation by causing the vehicle to skid or roll. Similarly, turning the vehicle in the opposite direction can lead to an overcorrection and loss of control. Checking the rearview mirror can be useful in some instances, but it is vital to focus on keeping control of the vehicle first and foremost during a blowout. Thus, the emphasis on firmly gripping the steering wheel ensures that you have the best chance of handling the blowout safely and effectively.