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 about Bacteriocins are true except? \nSelect and explain. \nA. Produced by coliform bacteria, Pseudomonas pyocyanea, Corynebacterium diphtheriae, B. Antibiotic Like substances, C. Bacteriocins enable intraspecies classification, D. Active against bacteriophages', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Bacteriocins are antibiotic like substances produced by several strains of coliform bacteria.', 'role': 'assistant'}]