This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pediatrics
The most common causative agent of meningitis in the age group of 6 months -3 year amongst the following is 
Select and explain. 
A. Streptococcus agalactiae, B. H. influenzae, C. Staphylococcus, D. N. gonorrhoeae
A: Streptococcus agalactiae
Answer: A: Streptococcus agalactiae 
Explanation: The most common meningitis occurs In case of 6 months to 3 yr old children is haemophilus influenza. Reference: GHAI Essential pediatrics, 8th edition