Q. DO WE SPELL 'ORGANISATION' WITH A 'Z' OR AN 'S' IN AUSTRALIA?
Some of your lecturers may prefer you to adjust your settings to Australian/British spelling which use the letter 'S' rather than American spelling which uses the letter 'Z'.
Whichever you use, make sure to be consistent across the assessment with either British-Australian or American. If you are still not sure which one to select always speak with your lecturer for further guidance.