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
Sulfonamides inhibit bacterial synthesis of folic acid by : 
Select and explain. 
A. Uncompetitive inhibition, B. Allosteric inhibition, C. Competitive inhibition, D. Non competitive inhibition
C: Competitive inhibition
Answer: C: Competitive inhibition 
Explanation: None