Answer:
Option B: Air bags are designed toprevent the driver from sustaining head trauma.
Explanation:
Air bags are auxiliary protection. They are designed to work best in combination with seat belts. They are generally designed to deploy in moderate to severe crashes and may deploy in even a minor crash.
Air bags reduce the chance that the vehicle's occupant's upper body or head will strike the vehicle's interior during a crash.
Thus, Air bags are designed toprevent the driver from sustaining head trauma.