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: Biochemistry
Which of the following is RNA with catalytic activity? 
Select and explain. 
A. Ribonuclease P, B. Peptidyl transferase, C. Sn RNA, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: RNA with catalytic activity is known as Ribozyme. All the 3 enzymes given as Options are Ribozymes.