Need Help ... What to backup with Windows 7 and Ghost 15.0

I am a long time user of Norton Ghost 14.0 with Windows XP.  This was very easy to use and I backed up the entire C drive each time.

 

I just installed Norton Ghost 15.0 on a new Dell Windows 7 machine.

 

Now when I go to back up my PC I see the following each on a different line):

Circle with a line through it that reads Dell Utility (*;\)

Circle with a line through it that reads RECOVERY (*:\)

OS (C:\)

and of course the 4th line shows my external HDD

 

What do I back up?  Does the Dell Utility and RECOVERY need to be baced up?

If so do I make 3 separate backups ... one for Dell Utility ... one for Recover ... one for C:\

Or create one backup and select all 3 options?

 

I am confused.