A nurse is reinforcing teaching about car seat safety with a parent of a newborn. Which of the following statements by the parent indicates an understanding of the teaching?

This statement reflects an important recommendation for car seat safety. It is recommended to keep infants and toddlers rear-facing in their car seats until they reach the age of 2 or until they outgrow the height and weight limits specified by the car seat manufacturer. Rear-facing car seats provide better protection for the child's head, neck, and spine in the event of a crash. "I should position the car seat's retainer clip at the level of my baby's belly button." The correct position for the retainer clip is at armpit level. It should be positioned across the chest, resting on the bony part of the child's shoulders. Placing the retainer clip at the level of the belly button can be unsafe and may not provide proper protection. "I should enable the airbag when my baby is in the front seat of the car." It is not recommended to place a rear-facing car seat in the front seat of a vehicle with an active airbag. The force of the airbag deployment can cause serious injuries to the child. The safest place for a rear-facing car seat is in the back seat of the vehicle. "I should place my baby in the car seat at a 90-degree angle." The angle at which the car seat is installed depends on the specific instructions provided by the car seat manufacturer. It is important to follow the manufacturer's guidelines for proper installation. Some car seats have built-in angle indicators or adjustable recline positions to help achieve the correct angle for optimal safety.