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: Unknown
[{'content': 'Best Hormonal contraceptive for sickle cell anemia patient is \nSelect and explain. \nA. Ocp, B. Pop, C. Cu-T, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: POP is contraindicated in liver diseases, vascular disorders and breast cancer. It is safe in sickle cell anaemia.', 'role': 'assistant'}]