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: Forensic Medicine
Bluish discolouration of the vagina seen in pregnancy is known as: KCET 12 
Select and explain. 
A. Chadwick's sign, B. Goodell's sign, C. Hegar's sign, D. Palmer's sign
A: Chadwick's sign
Answer: A: Chadwick's sign 
Explanation: Ans. Chadwick's sign