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

"I will turn the car seat forward facing when my baby is 1 year old."

"I will place the retainer clip on my baby's upper abdomen."

"I will position the shoulder harness straps 3 inches above my baby's shoulders."

"I will position my baby at a 45-degree angle in the car seat."