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': 'Mouth breathing with enlarged adenoids and tonsils may\nbe best described as: \nSelect and explain. \nA. Anatomic, B. Obstructive, C. Physiologic, D. Habitual', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]