One of the researchers proposes using oxygen gas production to measure reaction rates. Which of the following statements best justifies the use of the proposed modification as a way of creating an appropriate control for the investigation?
A
The experiment can be repeated without hydrogen peroxide, which will help eliminate an uncontrolled variable.
B
The experiment can be repeated without peroxidase, which will introduce a second independent variable.
с
The experiment can be repeated without guaiacol, which will reveal the effect of guaiacol on the reaction rates.
D
The experiment can be repeated without water, which will reveal whether the reaction can occur inside a living cell.