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
Depot medroxyprogesterone acetate is sparingly used as a contraceptive because it causes : 
Select and explain. 
A. Cardio vascular complications, B. Lactational failure, C. Breast cancer, D. Irregular menstrual bleeding
D: Irregular menstrual bleeding
Answer: D: Irregular menstrual bleeding 
Explanation: Irregular menstrual bleeding