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 52-year-old male with toxic adenoma, treatment of choice is - 
Select and explain. 
A. Surgical-removal of adenoma, B. Radiotherapy, C. Radioactive I2, D. Medical treatment
C: Radioactive I2
Answer: C: Radioactive I2 
Explanation: None