In Autokinetic Effect Studies,researchers Will Sometimes Replace One Group Member

In autokinetic effect studies,researchers will sometimes replace one group member with a new member after each set of trials until all the members are new to the situation.What is the primary purpose of this approach?

A) To demonstrate the importance of informational influence.
B) To demonstrate the power of normative influence.
C) To demonstrate the autokinetic effect.
D) To demonstrate the transgenerational influence of norms.