Choose from options: Determine if the sentence is true based on the text below:
Barton was never Prime Minister of Australia.

In Australia, Australian National Flag Day is celebrated on 3 September. It commemorates the day in 1901 on which the Australian National Flag was first flown. On that day Prime Minister Edmund Barton announced the winners of a competition to design a flag for Australia. A large flag, 5.5 by , was flown over the dome of the Royal Exhibition Building in Melbourne.
Available options: (I) Yes (II) It's impossible to say (III) No
(III)