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: Pharmacology
[{'content': 'Absolute contraindication of combined oral contraceptive pill is: \nSelect and explain. \nA. Epilepsy, B. Obesity, C. Smoking 10 cigars/day, D. Active liver disease', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]