Which of these factors led to the decimation of the Aborigine population?

A. European diseases

B. assimilation

C. emigration

D. American slavery

A. European diseases led to the decimation of the Aborigine population

Explanation:

Following the measure of the success of the government, that were used to measure the indigenous outcomes, the federal government of Australia failed its people terribly.

Since the establishment of the aboriginal from the islander, it is clear that the people used to die earlier than the Australians did and their health conditions were worse to gather with their social and economic outcomes. This is because the Australian had failed to improve the economic conditions of their people.