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': 'Anemic hypoxia is due to \nSelect and explain. \nA. ↓PO2 in arterial blood, B. ↑PO2 in arterial blood, C. ↑PCO2 in arterial blood, D. ↓O2 content in arterial blood', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Arterial PO2/ Dissolved oxygen is normal in anemic hypoxia, but the arterial oxygen content is low. This may be due to anemia, CO poisoning etc.', 'role': 'assistant'}]