This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infections of the Neonatal Infant, Subject name: Pediatrics
[{'content': 'Most common causative organism for sepsis in newborn is: \nSelect and explain. \nA. Streptococcus agaiactiae, B. Klebsiella pnuemonia, C. Streptococcus pyogenes, D. H. influenzae', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans- A Age wise distribution of common causative organisms for Sepsis in humans.', 'role': 'assistant'}]