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': 'Which of the following is not seen in thyrotoxicosis \nSelect and explain. \nA. Palpitation, B. Anxiety, C. Weight loss, D. Menorrhagia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ref - davidsons 23e p637', 'role': 'assistant'}]