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
[{'content': 'Birth trauma is a risk factor for: \nSelect and explain. \nA. Prolapse uterus, B. Endometriosis, C. PID, D. Abortions', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Birth trauma is an important aetiological factor for prolapse.', 'role': 'assistant'}]