Answer:
Option B
Step-by-step explanation:
Young children need to be restrained by a restraining device such as a special seat belt. Normally, young children are prone to more around and may tamper with doors and windows whilst a car is moving.
This results in serious accidents. For instance, a child might disturb a driver, or a child might open a door and crush outside.
Therefore, children under five years and younger need a restraining device.