This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
[{'content': "Thyrotoxicosis can be differentiated from anxiety neurosis clinically by \nSelect and explain. \nA. Tachycardia, B. Sleeping pulse rate, C. Moist hands, D. Ankle's jerk", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Pulse rate in thyrotoxicosis Ref image - reasearchgate.net', 'role': 'assistant'}]