The two graphs shown here represent a reaction that proceeds without an enzyme (left) and with an enzyme (right). According to the information shown here, what is the most likely role of enzymes in a chemical reaction?
A) the enzyme allows the reaction to occur forwards or backward
B) the enzyme reduces the level of product that is made from the original reactants
C) the enzyme reduces the amount of activation energy required for the reaction to proceed
D) the enzyme reduces the number of reactants required to make the same amount of product