Answer:
a. Telling someone to keep quiet
Explanation:
Communication refers to the relay of information between two or more people. Communication can take many forms and can be passed through various means or channels. Telling someone to keep quiet is a form of command or instruction which is meant to be obeyed.
It is used for children to regulate their behavior. When used on adults who do not like being regulated, it might come off as offensive.
The use of pedometers benefited people at high risk for type 2 diabetes because when told they had to walk 10,000 steps they thought it was impossible but once they saw how much steps they did doing regular everyday things it seemed easy to accomplish 10,000 steps.
Active listening, good posture.
No this may be harmful depending on what you are using them for