15. Which of the following about network architectures is TRUE?
(A) Only one computer can act as a server on a client/server network
(B) Each device on a peer-to-peer network can share its resources with other devices
(C) One client computer crashing can affect the other computers on a client/server network
(D) A computer can act as either a client or a server, but not both, on a peer-to-peer network