In an Experimental Procedure,the Researcher Measures Changes,such as Cell Growth

In an experimental procedure,the researcher measures changes,such as cell growth rates,numbers of patients with a disease,etc.in response to factors manipulated at the beginning of the experiment.This measure of change in response to the initial conditions is the

A) Both dependent variable and standardized variable are correct.
B) dependent variable.
C) standardized variable.
D) control group.
E) independent variable.