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': 'Chemoreceptor reflex of blood pressure regulation is stimulated by all except \nSelect and explain. \nA. Hypoxia, B. Acidosis, C. Decreased BP, D. Hypercapnia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Stimulus for chemoreceptor reflex ⇒\n\nHypoxia\nHypercapnia\nAcidosis', 'role': 'assistant'}]