What in the following is not true regarding the client-server (CS) and the peer-to-peer (P2P) network architecture (choose the one best answer)?A) CS network has dedicated server and clients, P2P does not have an always-on server. B) P2P network is more scalable than CS network CS network is more reliable than P2P network. C) In P2P network, any peer can join and leave the network at any time.