PLEASE HELP ME I NEED THIS ASAP What is the “Out of Africa” Theory?

It calculates that human migration from Africa began 10,000 to 20,000 years ago.
It calculates humans evolved to bipedal hominids around 10,000 years ago.
It calculates humans evolved to bipedal hominids around 50,000 years ago.
It calculates that human migration from Africa began 60,000 to 90,000 years ago.

Explanation:

The correct answer will be option-D.

Out of Africa, the theory is a well-substantiated theory which explains that modern Homo sapiens descended from the small group in Africa.

The theory suggests that homo sapiens dispersed from Africa around 50,000 to 90,000 years ago and displaced the earlier species of Homo like Denisovans and Neanderthals.

This theory is supported by the evidence and is considered the widely accepted theory explaining the evolution of humans.

Thus, option-D is the correct answer.

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.

declare war, appoint military officers, sign treaties, make alliances