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
Lacrimation during anaesthesia indicates – 
Select and explain. 
A. Stage I, B. Stage II, C. Stage III, D. Stage IV
C: Stage III
Answer: C: Stage III 
Explanation: Lacrimation is present in light planes (1 & 2) of stage III and absent in deeper planes (3 & 4) of stage III.