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: Pharmacology
[{'content': 'Rapid onset of inhalational GA depends on \nSelect and explain. \nA. Blood solubility, B. Cerebral blood flow, C. Partial pressure of GA, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]