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: Medicine
[{'content': 'Romiplostim acts on which of the following receptors: \nSelect and explain. \nA. Thrombopoeitin, B. IL 6, C. IL 8, D. PGE 1', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Romiplostim: Genetically engineered protein in which the Fc component of a human antibody is fused to two copies of a peptide that stimulates the thrombopoietin receptors; approved for treatment of idiopathic thrombocytopenic purpura Ref: Katzung 11th edition Chapter 33.', 'role': 'assistant'}]