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: Pharmacology
Combined oral pill reduces the risk of ? 
Select and explain. 
A. Breast cancer, B. Ovarian cancer, C. Cervical cancer, D. Vaginal cancer
B: Ovarian cancer
Answer: B: Ovarian cancer 
Explanation: Ans. is 'b i.e., Ovarian cancer Functional ovarian cyst o Endometrial carcinoma o Benign breast disease (fibroadenosis) Ovarian malignancy o Urerine fibroid o Premenstural tension & dysmenorrhoea Pelvic inflammatory disease o RA o Osteoporosis Ectopic pregnancy o Colon cancer o Acne