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
The Hymen is the membranous vestige of junction between 
Select and explain. 
A. Sinovaginal bulbs and urogenital sinus, B. Cloaca and mullerian duct, C. Mullerian duct and urogenital sinus, D. Mullerian duct and sinovaginal bulbs
A: Sinovaginal bulbs and urogenital sinus
Answer: A: Sinovaginal bulbs and urogenital sinus 
Explanation: Hymen is the Partition between sino vaginal bulbs and urogenital sinus.