A nurse is caring for a newborn whose mother voices concerns about sudden infant death syndrome (SIDS). The nurse should include which of the following statements in a discussion with the mother?

A. Placing infants on their backs to sleep significantly reduces the risk of sudden infant death syndrome (SIDS). This is the primary prevention recommendation. B. SIDS rates have decreased in recent years due to increased awareness and safe sleep practices. C. There is no direct correlation between SIDS and the diphtheria, tetanus, and pertussis vaccines. D. Sleep apnea is not the main cause of SIDS, although it can be related to sleep-related breathing issues in some infants.