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: Medicine
A patient with Hodgkin's lymphoma is having a single cervical lymphnode. Biopsy showed lymphocyte predominant variant. Which of the following is the treatment of choice- 
Select and explain. 
A. Chemotherapy with Radiotherapy, B. Chemotherapy only, C. Radiotherapy only, D. No treatment needed
C: Radiotherapy only
Answer: C: Radiotherapy only 
Explanation: None