This question came up in my ATPL Air Law exam at the end of May. It was an English comprehension exercise! The way you have written it is far clearer than CASA did.
Despite spending probably 5 mins. trying to see what they wanted I still got it wrong!
(The AIP ref. is ENR1.5-25, 3.5, 3.5.1, 3.6, 3.6.1)