The files /etc/hosts.allow, /etc/hosts.deny and /etc/nologin all exist on your computer and the sshd
daemon is running. What will happen when users try to connect with ssh?

A.
Only connections from computers specified in /etc/hosts.allow will be allowed to log in.

B.
Only root will be allowed to log in.

C.
All users not specified in /etc/hosts.deny will be allowed to log in.

D.
No user will be allowed to log in.