According to the Insurance Institute for Highway Safety, side airbags with head protection reduce fatalities by what percentage?

Answer: C — 45%

The correct answer indicates that side airbags with head protection reduce fatalities by 45%. This statistic is crucial as it highlights the significant impact that safety features like side airbags can have on increasing occupant protection in the event of a crash, particularly in side-impact collisions. Side airbags are designed to deploy quickly in the event of a crash, cushioning the head and upper body of the occupants, which helps to mitigate the risk of severe injuries or fatalities. The 45% figure underscores the effectiveness of these safety measures, showing that they can substantially lower the likelihood of serious outcomes in accidents. This information is vital for drivers and passengers to understand the importance of advanced safety features in vehicles and the role they play in enhancing overall road safety.