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': 'True about clavulanic acid is ? \nSelect and explain. \nA. beta-lactamase inhibitors, B. Extended spectrum penicillin, C. Gram negative bacteria, D. Plasmid inhibitors', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., beta-lactamase inhibitors Clavulanic acid is a beta-lactamase inhibitor. Addition of clavulanic acid re-estabilishes the activity of amoxicillin against beta-lactamase producing organisms.", 'role': 'assistant'}]