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
Post operative Pulmonary Thromboembolism is seen in all, except : 
Select and explain. 
A. Tall and thin man, B. Obese male, C. Pregnant female, D. Oestrogen therapy
A: Tall and thin man
Answer: A: Tall and thin man 
Explanation: None