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
In traumatic transection of the femoral artery and vein, which among the following should be done -a) Femoral artery repair with vein ligationb) Repair of artery and veinc) Ligation of femoral arteryd) Below knee amputatione) Repair of artery with contralateral sympathectomy 
Select and explain. 
A. ac, B. ab, C. ad, D. bc
B: ab
Answer: B: ab 
Explanation: None