Use the Following to Answer the Questions Below

Multiple Choice

Use the following to answer the questions below:
A group of researchers investigated the effect of media usage (whether or not subjects watch television or use the Internet) in the bedroom on "Tiredness" during the day (measured on a 50 point scale) .
-Identify the variables as either explanatory or response variables.

A) Media usage in the bedroom = Explanatory; "Tiredness" = Response variable
B) Media usage in the bedroom = Response variable; "Tiredness" = Explanatory
C) Media usage in the bedroom = Explanatory; "Tiredness" = Explanatory
D) Media usage in the bedroom = Response variable; "Tiredness" = Response variable