This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
[{'content': 'Lab repo --> CSF with N glucose, (upward arrow) protein and marked lymphocytosis diagnosis is \nSelect and explain. \nA. T.B. Meningitis, B. Viral meningitis, C. Paialy Rx pyogenic infection, D. Pyogenic infection', 'role': 'user'}, {'content': 'Answer: A \nExplanation: TB meningitis (Tuberculous meningitis) is caused by the Mycobacterium tuberculosis bacteria. Infection begins elsewhere in the body, usually the lungs, but in about 1 - 2% of cases the bacterium causes TB meningitis. TB meningitis Characteristic cerebrospinal fluid (CSF) findings of TBM include a lymphocytic-predominant pleiocytosis, elevated protein, and low glucose. CSF acid-fast smear and culture have relatively low sensitivity but yield is increased with multiple, large volume samples. Ref Harrison20th edition pg 2345 .', 'role': 'assistant'}]