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: Anaesthesia
Diffusion hypoxia is seen during: 
Select and explain. 
A. Induction of anaesthesia, B. Recovering anaesthesia, C. Preoperatively, D. Postoperatively
B: Recovering anaesthesia
Answer: B: Recovering anaesthesia 
Explanation: B i.e. Recovering anesthesia