Why is SSH preferred over Telnet as a method of accessing a network device to alter or view the configuration?

Why is SSH preferred over Telnet as a method of accessing a network device to alter or view the
configuration?

A.
Telnet encrypts only the login information, not the entire transmission.

B.
SSH requires fewer network resources and no additional configuration.

C.
Telnet is more difficult to use and configure than SSH.

D.
SSH encrypts the login and session information.

Explanation: