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: Surgery
Most common cause of death in patients with Buerger's disease is - 
Select and explain. 
A. Gangrene, B. Pulmonary embolism, C. Myocardial infarction, D. Carcinoma lung
C: Myocardial infarction
Answer: C: Myocardial infarction 
Explanation: None