Which of the following describes the benefit of using control in this experiment?
Controlling the type of golf club used and having the same golf pro hit the ball eliminates the need to have a control group.
Controlling the type of golf club used and having the same golf pro hit the ball that may influence the response variable eliminates variability in the response variable.
Controlling the type of golf club used and having the same golf pro hit the ball that may influence the response variable reduces variability in the response variable.
Controlling the type of golf club used and having the same golf pro hit the ball means the differences observed in the response variable can be attributed to those variables that were controlled.