This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
Treatment of carcinoma left colon with acute obstruction 
Select and explain. 
A. Harman's procedure, B. Left colectomy with anastomosis, C. Proximal colostomy, D. Extended . colectomy with ileoanal anastomosis
A: Harman's procedure
Answer: A: Harman's procedure 
Explanation: .Obstruction due to rectosigmoid growth with patient being severely ill--Hamann's operation can be done to save the life of the patient wherein distal stump after removal of the growth is closed, proximal colon is brought out as end colostomy. ref:SRB&;s manual of surgery,ed 3,pg no 857