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 the following amoebae live in the large intestine except - 
Select and explain. 
A. E.coli, B. E. nana, C. E.gingivalis, D. Lbutschii
C: E.gingivalis
Answer: C: E.gingivalis 
Explanation: Ans. is 'c' i.e., E. gingivalis