This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of Adrenal Gland, Subject name: Medicine
[{'content': 'Which of the following is produced by Argentaffinoma of ileum? \nSelect and explain. \nA. G.A.B.A, B. Serotonin, C. Epinephrine, D. Nor-epinephrine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Argentaffin cells in Carcinoid tumor produce 5HT derivatives like Serotonin. Epinephrine and Norepinephrine are produced by Chromaffin cells which are seen in Pheochromocytoma.', 'role': 'assistant'}]