This quiz is wrong. Whilst all territorial claims South of 60 degrees are shelved for the duration of the Antarctic Treaty (and, I hope, for ever), there are a few Antarctic islands North of that line, notably Kerguelen, South Georgia, Heard and McDonald islands and Bouvet island. So, you should allow four answers - UK, France, Australia and Norway and the answer "none" should most definitely not be accepted as it is quite quite wrong.