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': 'Peripheral Chemoreceptors are stimulated by all except? \nSelect and explain. \nA. Hypoxia, B. Hypocapnia, C. Hypercapnia, D. Acidosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]