This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition, Subject name: Pediatrics
Para amino benzoic acid in breast milk prevents the infection of 
Select and explain. 
A. Plasmodium vivax, B. Kleibsella-pneumonia, C. Giardia, D. E.coli
A: Plasmodium vivax
Answer: A: Plasmodium vivax 
Explanation: Para-amino-benzoic acid(PABA) of breast milk provides protection against malaria.Ref: Page 97; Ghai essential pediatrics; 6th edition