A nurse is reinforcing teaching about the correct use of infant car seats with the parent of a newborn. Which of the following statements by the parent indicate an understanding of the teaching?

I should move the shoulder harness to the slots that are slightly below my baby's shoulders.

I should position the retainer clips at the level of my baby's umbilicus.

I should adjust the car seat so my baby is at a 60-degree angle while riding in the car.

I can change my baby to a forward-facing car seat when they weigh 15 pounds.