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
Cocket & Dodd's operation is for - 
Select and explain. 
A. Saphenofemoral flush ligation, B. Subfascial ligation, C. Deep vein thrombosis, D. Diabetic foot
B: Subfascial ligation
Answer: B: Subfascial ligation 
Explanation: Ans. is 'b' i.e., Subfascial ligation