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: Unknown
The earliest sign of placental separation is - 
Select and explain. 
A. Change in shape and consistency of uterus, B. Sudden gush of blood, C. Protrusion of umbilical cord, D. Cessation of cord pulsations
B: Sudden gush of blood
Answer: B: Sudden gush of blood 
Explanation: Ans-B