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
Birth trauma is a risk factor for: 
Select and explain. 
A. Prolapse uterus, B. Endometriosis, C. PID, D. Abortions
A: Prolapse uterus
Answer: A: Prolapse uterus 
Explanation: Birth trauma is an important aetiological factor for prolapse.