In Australian English, I would write 'Australianisation'. Note the 'a' before the 'n'. (Swap the second 's' for a 'z' as appropriate for your region/dialect.)
The quiz is broken for me. The answer box is hidden behind the flags, I was able to find it and type in it to finish, but I'm not sure if this a jetpunk related issue or something you updated
Also, when Vietnam doesn't work as an answer, the only other logical choice is China.
Congrats!
I made it
Congrats on the feature!