This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Physiology
[{'content': 'Thyroid hormones belong to which class of hormone? \nSelect and explain. \nA. Steroids, B. Proteins, C. Polypeptides, D. Amino acid derivatives', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Thyroid hormones are synthesized from the amino acid "TYROSINE" by iodination. Ref: guyton and hall textbook of medical physiology 12 edition page number:564,565,566', 'role': 'assistant'}]