A nurse is teaching a new parent how to correctly use a car seat. Which of the following statements by the parent indicates an understanding of the teaching?

Choice A rationale The American Academy of Pediatrics recommends that infants remain in a rear-facing car seat until they reach the maximum height or weight allowed by the car seat manufacturer, which often corresponds to approximately 2 years of age or older. This position provides superior protection for the infant's head, neck, and spine in the event of a frontal collision by distributing crash forces more effectively. Choice B rationale A five-point harness, not a four-point harness, is the standard and safest restraint system for infant and child car seats. The five points of attachment (shoulders, hips, and crotch) distribute crash forces across the strongest parts of the body, providing maximum protection and preventing ejection from the seat. Choice C rationale For a rear-facing car seat, the shoulder harness straps should be positioned at or *below* the baby's shoulders. This ensures that the straps are snug and correctly restrain the child, preventing upward movement and potential ejection during a collision. Placing them above the shoulders would not provide optimal restraint. Choice D rationale An infant car seat should be positioned at a 45-degree angle, not a 30-degree angle. This reclined position is crucial for maintaining an open airway for the infant, especially newborns who lack full head and neck control, and for preventing their head from falling forward, which could obstruct breathing.