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: Unknown
[{'content': 'Test available for AIDS virus detection includes - \nSelect and explain. \nA. Karpas test, B. Western blot test, C. ELISA test, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans: D', 'role': 'assistant'}]