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: Physiology
[{'content': 'MCHC is normal in all of the following conditions except: \nSelect and explain. \nA. Iron deﬁciency anaemia, B. Megaloblastic anaemia, C. Hemolytic anaemia, D. Aplastic anaemia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: MCHC is the most important absolute value in the diagnosis of anaemia.', 'role': 'assistant'}]