Refer to the exhibit. An engineer booted a new switch and applied this configuration via the console port. Which additional configuration must be applied to all...

Refer to the exhibit. An engineer booted a new switch and applied this configuration via the console port. Which additional configuration must be applied to allow administrators to authenticate directly to enable privilege mode via Telnet using a local username and password?

A. R1(config)#username admin R1(config-if)#line vty 0 4 R1(config-line)#password p@ss1234 R1(config-line)#transport input telnet B. R1(config)#username admin privilege 15 secret p@ss1234 R1(config-if)#line vty 0 4 R1(config-line)#login local C. R1(config)#username admin secret p@ss1234 R1(config-if)#line vty 0 4 R1(config-line)#login local R1(config)#enable secret p@ss1234 D. R1(config)#username admin R1(config-if)#line vty 0 4 R1(config-line)#password p@ss1234