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': 'What is CRISPR \nSelect and explain. \nA. Clustered regularly interspaced short palindromic repeats, B. Clustered Regularly in short polymerase reaction, C. Cryptococcal immune short pole reaction, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: CRISPR is acronym for clustered regularly interspaced short palindromic repeats.', 'role': 'assistant'}]