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

"I will place a thick, soft pad behind my baby's back."

"I can turn the car seat so it faces forward when my baby weighs 15 pounds."

"I will place the retainer clip at the level of my baby's armpits