<prompt> Which of the following is a Dihydropteroate synthase DHPS inhibitor?PyrimethamineTrimethoprimMethotrexateDapsone  <response>: Dapsone, PAS, Sulphonamide inhibit DHPS enzyme Pyrimethamine, Methotrexate, Trimethoprim - acts by inhibiting DHFR Dihydrofolate reductase enzyme. 