This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
[{'content': 'The depth of respiration is controlled by \nSelect and explain. \nA. Pneumotaxic center, B. Posterior medulla, C. Apneustic center, D. Pons', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Pneumotaxic center limits inspiration by inhibiting Apneustic center Ref: Ganong 25th ed/page 65', 'role': 'assistant'}]