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 contraceptives increase risk of all except 
Select and explain. 
A. Breast cancer, B. Ovarian cancer, C. Cervical cancer, D. Liver cancer
B: Ovarian cancer
Answer: B: Ovarian cancer 
Explanation: OCPs have protective effect against endometrial and ovarian cancer.