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': "Addison's disease is characterized by following except- \nSelect and explain. \nA. Hyperkalemia, B. Hypotension, C. Hyponatremia, D. Hvnncalcemia", 'role': 'user'}, {'content': 'Answer: D \nExplanation: there is hyper pigmentation, asthenia, hypotension,hyperkalemia, hyponatremia Ref -( Harrison 17 pg 2263)', 'role': 'assistant'}]