Which of the following is a correct entry in the /etc/hosts file?
A.
localhost 127.0.0.1 localhost.localdomain
B.
localhost.localdomain localhost 127.0.0.1
C.
localhost localhost.localdomain 127.0.0.1
D.
127.0.0.1 localhost.localdomain localhost
E.
localhost.localdomain 127.0.0.1 localhost
Explanation: