Before europeans arrived in the late-1700s, there were over 250 aboriginal languages in australia. today, there are less than 200 aboriginal languages spoken throughout the continent of australia. what conclusion can you draw from this information? a) the native peoples of australia were unified by a common language. b) the native peoples of australia did not all speak the same language. c) the native peoples of australia already knew english once the british arrived. d) the native peoples of australia preferred to speak french at the time of british colonization.