Amylase is an enzyme found in saliva that breaks down starch . The enzyme is currently functioning at its optimal pH of 7 and optimal temperature of 32 degrees * C Which of the following could result in an increase in the reaction rate? Choose 1 answer : А)Decreasing enzyme concentration B)Placing the reactants in an environment at 10 degrees * C C)Providing an environment with a pH of 9 D)Increasing substrate concentration