Have Scientists Determined That as Early Humans Moved from Africa

Have scientists determined that as early humans moved from Africa to other continents, they were responsible for the extinction of large mammals?

A) Yes. Most recently in North America
B) It's unclear. There's not much evidence that humans hunted those animals.
C) Yes. There is considerable evidence that humans hunted large mammals.
D) No. It was probably climate change.
E) Yes. It's happened on every continent.