A network administrator needs to allow only one Telnet connection to a router. For anyone viewing the confguration and issuing the show run command, the password for Telnet access should be encrypted.Which set of commands will accomplish this task?

A. service password-encryptionaccess-list 1 permit 192.168.1.0 0.0.0.255line vty 0 4loginpassword ciscoaccess-class 1
B. enable password secretline vty 0loginpassword cisco
C. service password-encryptionline vty 1loginpassword cisco
D. service password-encryptionline vty 0 4loginpassword cisco