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
[{'content': 'Which of the following is not a peptide/protein \nSelect and explain. \nA. Growth hormone, B. Insulin, C. PTH, D. Glucocoicoids', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Glucocoicoids", 'role': 'assistant'}]