This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen and pelvis, Subject name: Anatomy
Length of Posterior vaginal wall is 
Select and explain. 
A. Variable, B. Same as anterior vagina wall, C. Less than anterior vagina wall, D. More than anterior vagina wall
D: More than anterior vagina wall
Answer: D: More than anterior vagina wall 
Explanation: The anterior wall of the vagina is about 8 cm long and the posterior wall about 10 cm long. ref - BDC 6e vol2 pg 393