Answer: The context does not provide the options for question 8, but historically, Australia was colonized by Great Britain. Assuming the provided options are meant to be a subset of possible answers and that a specific choice needs to be made from the visible part, and considering that 'The USA' is listed as option 'a', and historical context is that Great Britain was the colonizer, it implies the USA is incorrect. Without the full options, a definitive answer cannot be selected from the provided choices. However, if this were a multiple choice question with the given options, and assuming 'Great Britain' or 'United Kingdom' was an option, that would be the correct answer. Since it is not visible, I cannot select an option.