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
Prokaryote is - 
Select and explain. 
A. Bacteria, B. Mycoplasma, C. Blue green algae, D. All
D: All
Answer: D: All 
Explanation: Ans. is 'a' i.e., Bacteria; 'b' i.e., Mycoplasma; 'c' i.e., Blue green algae