A 16-year-old female presents to the emergency department with altered mental status. She is difficult

A 16-year-old female presents to the emergency department with altered mental status. She is difficult to arouse and has slurred speech. On examination, she has track marks on her arms. Her vital signs reveal a heart rate of 98 beats/min, blood pressure 100/60 mmHg, respiratory rate 16/minute, and oxygen saturation 98% on room air. Her urine drug screen is positive for benzodiazepines, cannabinoids, opiates, and alcohol. She is admitted for monitoring and intravenous fluid administration. On day 2 of hospitalization, she complains of nausea, vomiting, diarrhea, and abdominal pain. Her pupils are noted to be equal and dilated. What is the likely cause of her symptoms on day 2? A. Alcohol withdrawal B. Opioid withdrawal C. Cannabis withdrawal D. Benzodiazepine withdrawal