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
Which of the following harmone is an example of peptide harmone? 
Select and explain. 
A. Paratharmone, B. Dopamine, C. Cortisol, D. Thyroxine
A: Paratharmone
Answer: A: Paratharmone 
Explanation: Paratharmone is a polypeptide harmone.
Dopamine and thyroxine is amino acid derivative.
Cortisol is a steroid harmone.