This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2017, Subject name: Microbiology
[{'content': 'Which of the following is anaerobic non - acid fast bacilli: \nSelect and explain. \nA. Tuberculosis, B. Listeria, C. Nocardia, D. Actinomyces', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Actinomyces is an obligate anaerobe & Non acid fast Tuberculosis- it is Gram positive acid fast 20% (depends on mycolic acid content) Listeria-it is Gram positive coccobacilli Nocardia -it is Obligate aerobe , acid fast (1%)', 'role': 'assistant'}]