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?

I should position the car seat's retainer clip at the level of my baby's belly button."

1 should keep my baby rear-facing in the car seat until she is 2 years old."

I should enable the airbag when my baby is in the front seat of the car."

1 should place my baby in the car seat at a 90-degree angle."