JAVA/Sun Exam Questions

Which variable should be set?

The security policy of your company dictates that root logins are only allowed on the console of a system. Which variable should be set?

A.
CONSOLE=yes in /etc/default/su

B.
CONSOLE=yes in /etc/default/login

C.
CONSOLE=/dev/console in /etc/default/su

D.
CONSOLE=/dev/console in /etc/default/login