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': 'Bacterial genome has been completely recognised for which one of the following agents - \nSelect and explain. \nA. H. pylori, B. Yersinia enterocolitis, C. Campylobacter jejuni, D. Streptococcus pneumoniae', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]