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

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

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

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