This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pulmonary Thromboembolism and Deep-Vein Thrombosis, Subject name: Medicine
The most common cause of Pulmonary thromboembolism - 
Select and explain. 
A. DIC, B. Coagulation Disorder, C. DVT, D. Venous Hypertension
C: DVT
Answer: C: DVT 
Explanation: Ans. is 'c' i.e., DVT o The most common cause of pulmonary thromboembolism is deep venous thrombosis.