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: Unknown
[{'content': 'Erythropoiesis is promoted by all of the following except- \nSelect and explain. \nA. ACTH, B. Thyroxine, C. Oestrogen, D. Prolactin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans-C', 'role': 'assistant'}]