Which Is an Example of Saturation of an Enzyme-Catalyzed Reaction

Multiple Choice

Which is an example of saturation of an enzyme-catalyzed reaction?

A) The number of substrate molecules is much smaller than the number of available enzyme molecules.
B) The number of product molecules is much larger than the number of substrate molecules.
C) The number of substrate molecules is much larger than the number of product molecules.
D) The number of substrate molecules is much larger than the number of available enzyme molecules.
E) The number of available enzyme molecules is in equilibrium with the number of substrate molecules.