This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'Arm muscle not supplied by musculocutaneous nerve - \nSelect and explain. \nA. Biceps, B. Triceps, C. Brachialis, D. Coracobrachialis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Musculocutaneous nerve supplies Biceps brachii, brachialis, corachobrachialis.\xa0Triceps is supplied by radial nerve.', 'role': 'assistant'}]