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': 'Sulfonamides inhibit bacterial synthesis of folic acid by: \nSelect and explain. \nA. Uncompetitive inhibition., B. Allosteric inhibition., C. Competitive inhibition., D. Non competitive inhibition.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]