This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Esophagus, Subject name: Surgery
What is the name of this fundoplication? 
Select and explain. 
A. Nissen's fundoplication, B. Watson fundoplication, C. Dor fundoplication, D. Toupet fundoplication
A: Nissen's fundoplication
Answer: A: Nissen's fundoplication 
Explanation: Type of fundoplication Degree of Wrap Watson 90 deg anterior fundoplication Dor 180 deg fundoplication Toupet 180 deg posterior fundoplication subsequently modified to 270 deg Belsey Mark IV 270 deg fundoplication Nissen's 360 deg fundoplication