$\square$ C. The Microsoft term for a peer-to-peer network is a workgroup environment. If you have not installed your Windows clients in a domain (client/server), then they are sitting in a workgroup environment.
ख A is incorrect because a client/server network is the opposite of a peer-to-peer network; a client/server network uses a central server. B is incorrect because domain is the term for a Microsoft server-based environment. D is incorrect because Active Directory is the term for Microsoft's implementation of a directory server.