Speech topics should be restricted to issues you are knowledgeable about, and not topics that you are curious about or have not explored previously

___________ is a privilege those more powerful can use on those less powerful, such as a doctor putting his arm around his patient

a. Breaking the rules b. Having the final word c. Touch d. Back-channeling

Open systems are characterized by ____________, or the ability to sustain themselves and grow.  

A. participation B. requisite variety C. negative entropy D. cultural diversity