question: Q:A 5-month-old boy presents with increasing weakness for the past 3 months. The patient’s mother says that the weakness is accompanied by dizziness, sweating, and vertigo early in the morning. Physical examination shows hepatomegaly. Laboratory findings show an increased amount of lactate, uric acid, and elevated triglyceride levels. Which of the following enzymes is most likely deficient in this patient?? 
  {'A': 'Debranching enzyme', 'B': 'Hepatic glycogen phosphorylase', 'C': 'Lysosomal α-1,4-glucosidase', 'D': 'Muscle glycogen phosphorylase', 'E': 'Glucose-6-phosphatase'},