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': 'Frequent periodontal abscesses appear to be an important periodontal feature in \nSelect and explain. \nA. Nutrition deficiency, B. Diabetes Mellitus, C. Hormonal imbalance, D. Cardiovascular diseases', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]