This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Muscle not having dual nerve supply \nSelect and explain. \nA. Digastric, B. Thyrohyoid, C. Trapezius, D. Adductor magnus', 'role': 'user'}, {'content': "Answer: B \nExplanation: Anterior belly of digastric is supplied by the trigeminal nerve and posterior belly by facial nerve Spinal accesory nerve and c3,c4 nerves supply Trapezius Ischial pa of sciatic nerve and the obturator nerve supply adductor magnus Ref: Gray's 39e/p112-127", 'role': 'assistant'}]