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': 'Depot medroxyprogesterone acetate is sparingly used as a contraceptive because it causes : \nSelect and explain. \nA. Cardio vascular complications, B. Lactational failure, C. Breast cancer, D. Irregular menstrual bleeding', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Irregular menstrual bleeding', 'role': 'assistant'}]