This answer basically summarizes the entire hypothesis and
purpose of the experiment.  The independent variable is in
this statement, somewhere, but it provides much too much
information.  It's as if someone asked you where you are going
this weekend and you answered "I'm going to go south for 80 miles,
east for a mile and a half, south for 3 miles, north for 3 miles,
west for a mile and a half, and north for 80 miles."  The answer
is accurate but not informative.