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
Average weight of thyroid gland where diet is rich in Iodine is - 
Select and explain. 
A. 10-12gm, B. 14-16gm, C. 18-20gm, D. 28-30gm
C: 18-20gm
Answer: C: 18-20gm 
Explanation: None