This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Microbiology
[{'content': 'A chronic alcoholic is presenting with clinical features of meningitis. Most likely organism which will grow on CSF culture: \nSelect and explain. \nA. Streptococcus pneumoniae, B. N. meningitidis, C. Listeria monocytogenes, D. E coli', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Streptococcus pneumoniae REF : ananthanarayana 10th ed', 'role': 'assistant'}]