input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** An adolescent male patient came with pain in calf muscles on exercise. On biopsy excessive amount of glycogen present was found to be present in the muscle. What is the most likely enzyme deficiency?   (A) Muscle debranching enzyme   (B) Phosphofructokinase I   (C) Glucose 6 phosphatase   (D) Phosphorylase enzyme
output: ['(D) Phosphorylase enzyme <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Muscle debranching enzyme  (B) Phosphofructokinase I  (C) Glucose 6 phosphatase  (D) Phosphorylase enzyme <> possible answers', '  An adolescent male patient came with pain in calf muscles on exercise. On biopsy excessive amount of glycogen present was found to be present in the muscle. What is the most likely enzyme deficiency? <> context']