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': 'All are true regarding paroxysmal nocturnal haemoglobinuria, except- \nSelect and explain. \nA. Haemosiderinuria, B. Pancytopenia, C. Increased alkaline phosphatase, D. Cellular marrow', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]