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 carcinoma shows good response to radioiodine: 
Select and explain. 
A. Papillary carcinoma., B. Follicular carcinoma., C. Anaplastic carcinoma., D. Medullary carcinoma.
B: Follicular carcinoma.
Answer: B: Follicular carcinoma. 
Explanation: None