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
The operation where in the stump of the stomach is directly anastomosed to the stump of the duodenum is called - 
Select and explain. 
A. Polya gastrectomy, B. Hoffmeister gastrectomy, C. Billroth I gastrectomy, D. Billroth II gastrectomy
C: Billroth I gastrectomy
Answer: C: Billroth I gastrectomy 
Explanation: None