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: Surgery
Which of the following conditions is the most common complication of radioiodine treatment of Grave's disease? 
Select and explain. 
A. Thyroid storm, B. Subacute thyroiditis, C. Thyroid cancer, D. Hypothyroidism
D: Hypothyroidism
Answer: D: Hypothyroidism 
Explanation: None