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': "Muscle spared in ERB's palsy? \nSelect and explain. \nA. Deltoid, B. Brachialis, C. Biceps, D. Coracobrachilis", 'role': 'user'}, {'content': "Answer: D \nExplanation: Root value involved in ERB's palsy is C5 and C6 which gives supply to Axillary nerve\xa0& Musculocutaneous nerve.Coracobrachialis is supplied by C7 and hence spared.", 'role': 'assistant'}]