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: Pediatrics
After 5 days of birth, baby developed poor feeding, convulsions, fever with low protein low sugar and high chloride (in CSF) is most likely due to – 
Select and explain. 
A. Listeria monocytogenes, B. Mycoplasma pneumoniae, C. T.B., D. Leptospira
A: Listeria monocytogenes
Answer: A: Listeria monocytogenes 
Explanation: We cannot get the answer from CSF values because there is no meningitis which lowers CSF protein.
But we have to choose one answer.
There is only one organism among the four options which can cause neonatal meningitis - Listeria monocytogenes.