This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Non communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'Among the following, which one is the absolute contraindication for combined oral contrceptive pills - \nSelect and explain. \nA. Diabetes mellitus, B. Migraine, C. Previous history of thrombo-embolism, D. Hea disease', 'role': 'user'}, {'content': "Answer: C \nExplanation: park's textbook of preventive and social medicine 23rd edition. *absolute contraindications: cancer of breast and genitals,liver disease,history of thromboembolism and abnormal uterine bleeding.", 'role': 'assistant'}]