This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Two Drugs having opposite action on different receptor is which type of antagonism \nSelect and explain. \nA. Psychological antagonism, B. Physical antagonism, C. Competitive antagonism, D. Non Competitive antagonism', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref-KDT 7/e p58 Physiological antagonism describes the behavior of a substance that produces effects counteracting those of another substance (a result similar to that produced by an antagonist blocking the action of an agonist at the same receptor) using a mechanism that does not involve binding to the same receptor.', 'role': 'assistant'}]