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': 'All of the following are true about BCG vaccine except. \nSelect and explain. \nA. WHO recommends Danish 1331 strain of M.bovis, B. Given intradermally, C. Normal saline is a diluent, D. Site of injection should be cleaned with spirit', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Site of injection should be cleaned with soap but not with disinfectant or spirit.', 'role': 'assistant'}]