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': 'Adrenaline, noradrenaline and dopamine act through? \nSelect and explain. \nA. Two pass receptor, B. Ligand gated channel, C. Seven pass receptor, D. One pass receptor', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans is 'c' i.e. Seven pass receptor o Adrenergic receptors (Adrenaline, noradrenaline) and dopamine receptors are G-protein coupled receptors which are heptahelical receptors, i.e., have seven transmembrane spanning segments (Seven pass receptors)", 'role': 'assistant'}]