This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Muscle relaxants, Subject name: Anaesthesia
[{'content': 'Post operative muscle ache is caused by \nSelect and explain. \nA. d-TC, B. Suxamethonium, C. Gallamine, D. Pancuronium', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]