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
Moality associated with emergency abdominal aoic surgery is: 
Select and explain. 
A. 10%, B. 20%, C. 40%, D. >50%
C: 40%
Answer: C: 40% 
Explanation: Answer- c. 40%With careful preopetative csrdiac evaluation and postoperative care, the operative moality rate approximates 1-2%.After acute rupture, the moality rate of emergent operation is 45-50%. Endovascular repair with stent placement is an emerging approach but at the current time is associated with a moality rate of approximately 40%.