Which three statements are true concerning the use of open SSH utilities?

A.
SCP always requires a passphrase to be used.

B.
SCP permits copies between two remote hosts.

C.
SFTP permits transfers between two remote hosts.

D.
SSH may be used to execute a single command on a remote host instead of executing the
login shell on the remote host.

E.
SFTP may be used to execute a command on the remote server.

Explanation: