Which of the following will produce the greatest increase in the rate of the chemical reaction represented by the equation Na₂S₂O_3(aq) + 2HCl_(aq) → 2NaCI_(aq) + H₂O_(I) + SO_2(g) + S_(g)?

• A.A decrease in temperature and an increase in the concentration of the reactants
• B.An increase in the temperature and a decrease in the cocentration of the reactants
• C.An increase in temperature and an increase in the concentration of the reactants
• D.A decrease in the temperature and a decrease in the concentration of the reactants
• E.