Here's a link with a recent example:...

Here's a link with a recent example: https://www.ato.gov.au/law/view/document?docid=CLR/CR202283/NAT/ATO/00001
It relates to the sale of the Arcadia Project located in Zimbabwe, which was held through Prospect's 87% interest in foreign-resident company Prospect Lithium Zimbabwe Pvt Ltd (PLZ).

This would not apply to options, since an "option" is the option to acquire a share, but not a share itself.
I would suggest that the company would provide a window for option holders to convert to a full share, so in that case you'd need to have the cash available or sell some to raise the cash.
You'd have the time between announcement of offer to the voting etc to make these moves in any event.