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
Lumbar sympathectomy is of value in the management of: 
Select and explain. 
A. Intermittent claudication, B. Distal ischaemia affecting the skin of the toes, C. Arteriovenous fistula, D. Back pain
B: Distal ischaemia affecting the skin of the toes
Answer: B: Distal ischaemia affecting the skin of the toes 
Explanation: None