Answer:
A. IT professional, who maintains the network, must be added and removed from the network. - risk
B. Clients work independently; therefore, if one computer is not working, other computers can still do their jobs. - benefit (scalability is always a benefit)
C. Security levels are set up by individuals; therefore, these networks may not be as secure. - risk
D. There is no need for a big IT department to keep the network up and running. - benefit (it is simple for maintenance)
Step-by-step explanation: