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
Anastomosis of small bowel is done by: 
Select and explain. 
A. Suture in 1 layer by non-absorbable suture, B. Suture in 2 layers by non-absorbable suture, C. Suture in 2 layers by absorbable sutures, D. Suture in layers by absorbable suture
A: Suture in 1 layer by non-absorbable suture
Answer: A: Suture in 1 layer by non-absorbable suture 
Explanation: Bowel Anastomosis Good surgical technique is more impoant than the choice of suture material: Gentle handling of the bowel Adequate hemostasis Meticulous approximation of well-vascularized bowel Tension-free anastomosis Two-layer Anastomosis One-layer Anastomosis Inner layer is an absorbable 3-0 or 4-0 running full-thickness stitch Outerlayer is an inveing, usually 3-0, seromuscular stitch, which may be running or interrupted nonabsorbable A full thickness technique, interrupted or running with non-absorbable suture Ref: Shackelford 7th edition Pgno: 920-928