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: Dental
[{'content': 'Which of the following periodontal disease is associated with haematological disorder? \nSelect and explain. \nA. AIDS, B. Hypophosphatemia, C. Wegeners Granulomatosis, D. Histiocytoses - X', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]