This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Surgery
Ivor Lewis operation is the treatment of choice for cancer involving _____ esophagus 
Select and explain. 
A. Middle 1/3rd, B. Lower 1/3rd, C. Upper 1/3rd, D. Entire Esophagus
B: Lower 1/3rd
Answer: B: Lower 1/3rd 
Explanation: .