You are driving a car and are involved in a crash. If you are not wearing your seat belt, A. Your chances of being killed are the same whether or not you are wearing your seat belt
B. The airbags will protect you as if you were wearing your seat belt.
C. You are far more likely to be killed than if you were wearing your seat belt.

You are driving a car and are involved in a crash. If you are not wearing your seat belt;

C: You are far more likely to be killed than if you were wearing your seat belt.

One of the most important safety precautions that passengers and drivers in a car are always advised to adhere to is to put on their seat belt. Now this safety precaution of putting on a seat belt is very vital because when you wear the seat belt, you are buckled up and in the event of a car crash, you can't be ejected forcefully out of the car which would likely lead to death if you were not putting on your seat belt. Secondly the reason why it is so important to put on the seat belt is because the airbags are not sufficient to protect you as the force from the airbag can even kill you in the event of a car crash if you are not putting on the seat belt properly.

Read more about the importance of seat belts at; link