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
Maximal reduction in gastric acidity is achieved by ? 
Select and explain. 
A. Truncal vagotomy and pyloroplasty, B. Truncal vagotomy and antrectomy, C. Paial gastrectomy, D. Highly selective vagotomy
B: Truncal vagotomy and antrectomy
Answer: B: Truncal vagotomy and antrectomy 
Explanation: Ans. is 'b' i.e., Truncal vagotomy and antrectomy