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: Pathology
TNM staging does not include which of the following: 
Select and explain. 
A. Tumour size, B. Tumour site, C. Nodal involvement, D. Metastasis
B: Tumour site
Answer: B: Tumour site 
Explanation: None