This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'Increased serum calcium is seen in all except: \nSelect and explain. \nA. Myxedema, B. Multiple myeloma, C. Sarcoidosis, D. Primary hyperparathyroidism', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is A (Myxoedema): Hypercakemia is a feature of Hypehyroidism and not hypothyroidism (Myxoedema)', 'role': 'assistant'}]