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
A 40 year old female patient complains of weakness and loss of appetite. Patient is a known case of non-hodgkin’s lymphoma. Lymph node examination shows involvement of Waldeyer’s ring. The clinical staging for this  patient is? 
Select and explain. 
A. Stage I, B. Stage II, C. Stage III, D. Stage IV
A: Stage I
Answer: A: Stage I 
Explanation: None