The best republic suggested Plato is one in which philosophers are in charge. Olly philosophers have been trained and disciplined to govern with the best interests of the republic in mind other forms of government necessary create an us-versus-them'dichhotomy that is ultimately unsustainable
Answer: The practitioners are not part of a cluster.
Explanation: A cluster is a group of things or people that share similar characteristics. In practitioner's case they come from different states, counties, cities, and houses of worship (professing a different religion) so they have nothing in common.
A group used in a study or in an experiment, which does not get treatment by the scientists and is used as a foundation to determine the functions of the other tested subjects is known as the control group. The control group is only found in an experimental investigation.