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: Gynaecology & Obstetrics
Physiological chill in labour seen in : 
Select and explain. 
A. 1st stage, B. 2nd stage, C. 3rd stage, D. 4th stage
C: 3rd stage
Answer: C: 3rd stage 
Explanation: 3rd stage