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
Bisgard treatment is for - 
Select and explain. 
A. Aerial ulcer, B. Venous ulcer, C. TAO, D. Raynauds phenomenon
B: Venous ulcer
Answer: B: Venous ulcer 
Explanation: Ans. is 'b' i.e., Venous ulcer