This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
[{'content': 'Which of the following is gram positive bacillus- \nSelect and explain. \nA. Staphylococcus, B. Streptococcus, C. Listeria, D. Meningococci', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Listeria Gram positive bacteriao There are 6 classic gram positive bacteria that cause human disease,o Of these 2 are cocci1. Staphylococci2 Streptococci (including anaerobic peptostreptococci)o Other 4 are bacilli1. Corynebacterium3. Clostridium2 Bacillus4. Listeria", 'role': 'assistant'}]