The correct response is that the passenger seat should be adjusted as far back as possible when a child is riding in the front seat. This adjustment is crucial for safety reasons. By moving the seat back, the distance between the child and the dashboard is increased, which helps reduce the risk of injury in the event of a crash or airbag deployment.
Airbags are designed to protect adults, and deploying an airbag too close to a child can be dangerous. A greater distance provides a buffer that can mitigate the force of an airbag explosion, which can otherwise cause serious harm. Ensuring the seat is as far back as possible maximizes this distance, creating a safer environment for the child.
Other options either do not prioritize safety or are misleading, such as placing the seat too close to the dashboard or in unnecessary positions that do not enhance safety measures for child passengers.