Automobile seatbelts are necessary because of a person's what?

Question

they are necessary because of a passenger's... choose one of these

a-inertia

b-weight

c-speed

d-gravity

Answer 1

inertia

Answer 2

inertia is not our friend in car accidents.

Answer 3

A. Inertia...............................

Answer 4

How about safety?  To prevent someone from being flung out of the car and getting killed.

Answer 5

automobile seatbelts are necessary because of absurd government officials who feel that you don't deserve to decide your personal safety issues for yourself