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
Endometriosis is common in : 
Select and explain. 
A. Multiple, B. Peri menopausal age, C. Nullipara, D. Virgins
C: Nullipara
Answer: C: Nullipara 
Explanation: Nullipara