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: Social & Preventive Medicine
Which of the following is/are benefits of combined OCPs use ?a) Hepatocellular adenomab) PIDc) Ovarian cystsd) Fibrocystic disease of breaste) Ectopic pregnancy 
Select and explain. 
A. bce, B. abd, C. bcde, D. acde
C: bcde
Answer: C: bcde 
Explanation: None