Neonatal meningitis is caused by –: (A) Group `B' Streptococcus, (B) E. Coli, (C) Klebsiella, (D) All of these
Answer is D. Causes of neonatal meningitis 

Group B-streptococcus (str.agalactiae)    
Listeria monocytogens    
E.coli  
Klebsiella 
Streptococcus fecalis    
Coagulase negative staphylococci                          
Staphylococcus aureus