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: Microbiology
[{'content': 'During the Window period of patient with AIDS ? \nSelect and explain. \nA. ELISA is - ye, B. Western Blot is - ye, C. Both are - ye, D. PCR is - ve', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e. Both are (-) ye", 'role': 'assistant'}]