This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gaseous exchange, Subject name: Physiology
[{'content': 'Adequate oxygen is delivered to the tissues in \nSelect and explain. \nA. Hypoxic hypoxia, B. Stagnant hypoxia, C. Anemic hypoxia, D. Histotoxic hypoxia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: - In hypoxic, anemic, and stagnant types of hypoxia, oxygen delivery to tissues is reduced. In histotoxic hypoxia, oxygen delivered to tissues is normal; however, tissues are unable to utilize the oxygen.', 'role': 'assistant'}]