A nurse is teaching the guardian of a 1-month-old infant about infant safety. Which of the following information should the nurse include in the teaching?

Place a small, folded blanket behind the baby's neck to provide support while in the car seat.

Anchor the car seat in a rear-facing position in the back seat of the vehicle.

Ensure the water heater temperature is set to no more than 54° C (129.2° F

Cover the baby with a cotton blanket when they are asleep.