What is the difference between the independent variable and the dependent variable? ( NO LINKS PLEASE)

A. The independent variable is what you control, and the dependent variable is what changes as a result

B. The independent variable is always a number, and the dependent variable is never a number

C. The dependent variable is what the investigator controls, and the independent variable is what happens as a result of this

D. The dependent variable is typically found in the first column of a table, and the independent variable is typically found in the second column