Refer to the exhibit. Which configuration enables password checking on the console line, using only a password?

This configuration correctly accesses the console line (line con 0), sets a password (e.g., 'cisco'), and then applies the `login` command, which instructs the router to prompt for the password configured directly on that specific line for authentication.

The `login local` command authenticates users against the local username database, which is not what the question asks for; it specifically requests using 'only a password' configured directly on the line.

This configuration applies to the Virtual Teletype (VTY) lines (0 4) used for remote access (Telnet/SSH), not the console line (con 0) as specified in the question.

The `transport input ssh` command specifies allowed inbound protocols for a line but does not enable or enforce password checking; the `login` command is required for that function.