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
What is the most appropriate operation for a solitary nodule in one lobe of thyroid - 
Select and explain. 
A. Lobectomy, B. Hemithyroidectomy, C. Nodule removal, D. Partial lobectectomy with 1 cm margin around nodule.
B: Hemithyroidectomy
Answer: B: Hemithyroidectomy 
Explanation: None