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
The following life cycle depicts which parasites: 
Select and explain. 
A. B. coli, B. E. histolytica, C. A. duodenale, D. E. vermicularis
B: E. histolytica
Answer: B: E. histolytica 
Explanation: Ans. (b) E. Histolytica Quadrinucleate cyst suggest E. histolytica.