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
In thyroidectomy, 4-5 grams on each side is left is known as: 
Select and explain. 
A. Near total thyroidectomy, B. Hemithyroidectomy, C. Total thyroidectomy, D. Subtotal thyroidectomy
D: Subtotal thyroidectomy
Answer: D: Subtotal thyroidectomy 
Explanation: None