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
Compared with other mullerian duct defects, a transverse vaginal septum is associated with lower rate of 
Select and explain. 
A. Endometriosis, B. Renal anomalies, C. Ectopic pregnancy, D. Retrograde menstruation
B: Renal anomalies
Answer: B: Renal anomalies 
Explanation: In contrast to other mullerian duct defects, transverse vaginal septum is associated with few urologic abnormalities.