In an experiment researchers want to determine if the variable causes change in variable a) dependent , independent b) confounding, independent c) independent, dependent d) dependent, extraneous

c). independent, dependent

Explanation:

An independent variable can be define as the variable which can be changed in an experiment. It can be manipulated manually. The effect of such alteration and manipulation can be observed on the dependent variable.  

The dependent variable is the one which changes due to the changes and alteration done by the experimenter on the independent variable.

i think the answer is a and b

i wish you luck

i think it would be 5