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: Physiology
[{'content': 'Pneumotaxic center; True is: \nSelect and explain. \nA. Contains both I and E neurons, B. May play a role in fine tune of breathing, C. Both, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Pneumotaxic Center :\xa0Controls rate of breathing.\n\nLocated in the medial parabrachial and Kolliker-Fuse\xa0nuclei of the dorsolateral pons.\nContains both I and E neurons.\nThe normal function of the pneumotaxic center is\xa0unknown, but it may play a role in smooth switching\xa0between inspiration and expiration (“fine-tune” of the\xa0breathing).\nA strong pneumotaxic signal can increase the rate of\xa0breathing 30-40 breaths per minute, whereas a weak\xa0pneumotaxic signal may reduce the rate to only\xa03-5 breaths per minute.', 'role': 'assistant'}]