This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2019, Subject name: Anaesthesia
Which of the following Mapleson systems has no rebreathing bag? 
Select and explain. 
A. B, B. C, C. D, D. E
D: E
Answer: D: E 
Explanation: Mapleson E/Ayre's T piece doesn't have a Rebreathing bag. If we add a Rebreathing bag it forms Mapleson F which is a circuit of choice for Paediatric patients both for Spontaneous and Controlled ventilation.