What Is the Purpose of Performing a Sympathectomy for Clients

What is the purpose of performing a sympathectomy for clients with Buerger's disease?

A) to increase circulation to the distal portions of the limbs
B) to relieve pain and prevent vasospasm in the affected area
C) to prevent gangrene and the need for amputation of the digits
D) to prevent paresthesia and numbness of the hands and feet when at rest