The Study of Enzymes Also Includes an Examination of How

The study of enzymes also includes an examination of how the activity is regulated.Molecules that can act as competitive inhibitors for a specific reaction are often similar in shape and size to the enzyme's substrate.Which variable or variables used to describe enzyme activity will remain the same in the presence and absence of a competitive inhibitor?

A) V_max
B) V
C) V_max and K_m
D) K_m