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: Physiology
Amine hormone is ? 
Select and explain. 
A. Insulin, B. Glucocoicoid, C. PTH, D. Thyroxine
D: Thyroxine
Answer: D: Thyroxine 
Explanation: Ans. is 'd' i.e., Thyroxine