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: Microbiology
All cause malabsorption except: 
Select and explain. 
A. Giardiasis, B. Ascaris lumbricoides, C. Strongyloides, D. Capillaria phillipinesis
B: Ascaris lumbricoides
Answer: B: Ascaris lumbricoides 
Explanation: Ascaris lumbricoides