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
[{'content': 'Contraindication of O.C.P - \nSelect and explain. \nA. Liver disease, B. PID, C. Renal disease, D. Epilepsy', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Liver disease", 'role': 'assistant'}]