increasing the reaction temperature using larger particles of solid reactants reducing the concentration of the reactants adding an inhibitor to the reaction mixture
I gave my students this multiple choice question: Which change increases the rate of a chemical reaction?

Only one answer is correct among these 4 choices:
- increasing the reaction temperature
- using larger particles of solid reactants
- reducing the concentration of the reactants
- adding an inhibitor to the reaction mixture

Could you tell me which one is correct?

increasing the reaction temperature