This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
Most common GI manifestation in HIV infection is - 
Select and explain. 
A. Amebiasis, B. Cryptosoporidiosis, C. Giaridiasis, D. Hook Worm infestation
B: Cryptosoporidiosis
Answer: B: Cryptosoporidiosis 
Explanation: Chronic small bowel diarrhea may be due to HIV enteropathy.typically present with chronic watery diarrhea & wasting without fever.Infection with one of three unicellular organisms is responsible for most cases: cryptosporidiosis,mucrosporidiosis, isosporiasis. Reference: Harrison20th edition pg 789