This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thyroid, Subject name: Surgery
A patient came with a small solitary nodule in right lobe of thyroid. FNAC shows follicular adenoma. The best surgery is: 
Select and explain. 
A. Enucleation, B. Sub - total thyroidectomy, C. Right Hemithyroidectomy, D. Near - total thyroidectomy
C: Right Hemithyroidectomy
Answer: C: Right Hemithyroidectomy 
Explanation: A solitary toxic nodule ,which is often a functional follicular adenoma is treated with Iodine 131 therapy or Unilateral hemithyroidectomy . Patient with invasive follicular carcinoma are treated with total thyroidectomy .