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
Centchroman is not used in 
Select and explain. 
A. To prevent pregnancy, B. to prevent dysfunctional uterine bleeding, C. Poly cystic ovarian syndrome, D. None of the above
C: Poly cystic ovarian syndrome
Answer: C: Poly cystic ovarian syndrome 
Explanation: Contraindication of centchroman "are"

PCOS.
Cervical hyperplasia.