Are black ( dark brown ) Australian Aborigines the same race as black ( dark brown ) African people?

1
They are the same race. You can not tell who is black African & who is a black Australian Aborigine by looking at them
2
Different Race and you can tell who is a black African & who is a black Australian Aborigine by looking at them
3
Genetically Different Race but you can not tell who is black African & who is black Australian Aborigine by looking at them

4
There is only 1 human race