A or b i think hope it helps good luck and i hope it helps
D because it has limitations or <em><u>constraints</u></em><u />
D again because communication technology is used for all of these things.
Sender, Message, Receiver, Feedback
It can cause the system to conform to situations.
If they don't know the properties then they could damage their equipment or the project by misusing it.
Solids, Liquids, Gasses, Plasma, and Bose-Einstein condesates
