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
Thompson's Operation for Lymphoedema is 
Select and explain. 
A. Bypass procedure, B. Excisional surgery, C. Physiological shunting, D. Both excisional and shunting
D: Both excisional and shunting
Answer: D: Both excisional and shunting 
Explanation: In Thompson's operation, both excision and creation of communication between superficial and deep lymphatics is done.