To better understand in which kind of environment Enzyme C works best, it is important to understand the role of this enzyme in this reaction. The reaction has Substances X and Y as reactants, which means that X and Y are the substances that will react with each other to produce Substance W, the product. Enzyme C, in this reaction, will be a catalyzer, a protein to enhance the performance of the reaction and to make it work better and faster. Therefore, when Enzyme C is working best, we should expect the reaction to occur at higher rates, so we can expect more Substance W in a shorter period of time. Therefore, we can observe the reaction occuring in different types of environment, and if there is more Substance W in a basic environment, then we can suppor the hypothesis.
Therefore, the correct answer is A. the amount of substance W produced in five minutes at various pH levelsA