This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System Pa 3, Subject name: Physiology
[{'content': 'True regarding peripheral chemoreceptor \nSelect and explain. \nA. Sensitive to hypoxia, B. Sensitive to central PCO2, C. Sensitive to pH, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Peripheral chemoreceptor It responds strongly to decrease O2 in blood. Increase Co2 or aerial H+ ions indirectly stimulates peripheral chemoreceptors, increasing respiratory activity.', 'role': 'assistant'}]