A nurse is reinforcing teaching with a parent of a newborn about home safety precautions. Which of the following statements by the parent indicates an understanding of the teaching?

"I will place my newborn face up on a pillow when sleeping."

"I will make sure that I can fit one finger between the mattress and the side of my newborn's crib."

"I will attach the pacifier to my newborn's clothing with a string at bedtime:"

"I will place my newborn's crib near a heat vent during cold weather"