This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Diarrhoea syndrome in an AIDS patient can be d/t – a)  Rota virusb)  Cryptosporac)  Adenovirusd)  E. soli 
Select and explain. 
A. ab, B. a, C. ad, D. bc
A: ab
Answer: A: ab 
Explanation: Agents commonly causing diarrhea in HIV patient.

Rota virus                   
Isospora
Cryptosporidium   
Cyclospora
Microsporidium
Giardia Lambi   
Bacterial pathogens