Na₂S₂O_3(aq) + 2HCl_(aq) → 2NaCl_(aq) + H₂O_(l)
Which of the following would introduce the greatest increase in the rate of the chemical reaction above?

• A.An increase in temperature and decrease in the concentration of the reactant
• B.A decrease in the volume and increase in the pressure of the reactant
• C.A decrease in the temperature and an incease in the concentration of the reactant
• D.An increase in temperature and an increase in the concentration of the reactant
• E.