This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New Born Infants, Subject name: Pediatrics
Para amino benzoic acid of breast milk prevent the infection of: 
Select and explain. 
A. Plasmodium vivax, B. Klebscella-pneumonia, C. Giardia, D. E.coli
A: Plasmodium vivax
Answer: A: Plasmodium vivax 
Explanation: (Plasmodium vivax) (97-G)* Para-amino-benzoic acid (PABA) of breast milk provides protection against Malaria (Plasmodium vivax)* High level of bifidus factor protects the baby from infection with E. coli.* Lactoferrin - does not make breast milk a suitable medium for the growth of enterobacteria.