$\square$ A is correct. A file and print server is responsible for providing files and printers to users on the network.
ख B, C, and D are incorrect because they are each their own type of server. A web server will host web sites; a directory server is a server that contains a central list of objects, such as user accounts on the network; and an application server runs a form of networking application, such as an e-mail or a database server program.