This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
[{'content': 'Insulin acts by stimulation of: \nSelect and explain. \nA. Ionotropic receptor, B. Enzymatic receptor, C. Metabotropic receptor, D. Nuclear receptor', 'role': 'user'}, {'content': 'Answer: B \nExplanation: (Ref: KDT 6/e p258) Insulin acts by stimulation of tyrosine kinase receptors.', 'role': 'assistant'}]