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: Physiology
Physiological gastrectomy is: 
Select and explain. 
A. Ligate all major aeries, B. Antrectomy, C. Upper 1/3 of stoma resected, D. Ligation of 4-out of five aeries
A: Ligate all major aeries
Answer: A: Ligate all major aeries 
Explanation: A i.e. Ligate all major aeries