A nurse is caring for a newborn whose mother was taking methadone during her pregnancy. Which of the following findings indicates the newborn is experiencing withdrawal?

A. Neonatal Abstinence Syndrome (NAS) due to maternal opioid use can cause hypertonicity (increased muscle tone), tremors, irritability, and a high-pitched cry. B. Bradycardia is not a common withdrawal symptom; instead, tachycardia is expected. C. Acrocyanosis (bluish hands/feet) is a normal finding in newborns and not related to withdrawal. D. Bulging fontanels suggest increased intracranial pressure and are not a symptom of opioid withdrawal.