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
Oral contraceptive pills do not decrease risk of : 
Select and explain. 
A. STDs, B. Benign breast disease, C. Ovarian cyst, D. Ectopic pregnancy
A: STDs
Answer: A: STDs 
Explanation: STDs