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: Medicine
Storage form of thyroid hormone - 
Select and explain. 
A. Tri-iodo tyrosine, B. Tri - iodo tyronine, C. Thyroglobulin, D. Di-iodo thyrosine
C: Thyroglobulin
Answer: C: Thyroglobulin 
Explanation: None