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: Pharmacology
[{'content': 'Peginesatide is \nSelect and explain. \nA. IL - 11 analogue, B. Erythropoietin receptor agonist, C. G - CSF analogue, D. GM - CSF analogue', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]