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
Among the following, which one is the absolute contraindication for combined oral contraceptive pills - 
Select and explain. 
A. Diabetes mellitus, B. Migraine, C. Previous history of thrombo-embolism, D. Heart dsease
C: Previous history of thrombo-embolism
Answer: C: Previous history of thrombo-embolism 
Explanation: None