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
The most impoant consideration in a patient with borderline pulmonary function requiring lung resection is - 
Select and explain. 
A. The amount of nonfunctioning lung tissue to be removed, B. The amount of functioning lung tissue to be removed, C. Experience of the surgical team, D. Elevated pulmonary aery pressure
D: Elevated pulmonary aery pressure
Answer: D: Elevated pulmonary aery pressure 
Explanation: Ans. is 'd' i.e., Elevated pulmonary aery pressure