Answer:
<u><em>PARENTS</em></u>
Explanation:
Seat belts provide the best protection for passengers in a car. This advertisement emphasizes their importance encouraging drivers (in most cases parents) to always check if their children fastened up seat belts. Kids usually ignore their parents` advice finding it boring, so it should be parents` obligation to insist on buckling up before they start the car in order to increase their safety.
Ain’t is in fact a word. Tell her to look it up in the marium Webster dictionary. It’s a contraction for; am not, are not, or is not.
There are only two which are in the question
Peace and piece
It’s not really that confusing..