When Experimental Groups Are Created Using the Minimal Group Paradigm,which

When experimental groups are created using the minimal group paradigm,which of the following characteristics do these groups have?

A) Participants are separated by gender, with males in one group and females in another group.
B) Participants are separated by race, with white participants in one group and black participants in another.
C) Groups are created using meaningless and arbitrary criteria so that there is no real difference between the groups.
D) Groups are created by allowing participants to choose with whom they would rather work.