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: Forensic Medicine
[{'content': 'DNA fingerprinting can be done with all, except: UP 07; Delhi 08; NEET 13 \nSelect and explain. \nA. RBC, B. WBC, C. Saliva, D. Spermatozoon', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. RBC', 'role': 'assistant'}]