Which of the following is true regarding the recent Homo naledi fossil discovery?

It has been securely dated to 1.3 mya.
It is likely an earlier form of Homo owing to its small brain size and other features.
It is probably a descendent of Homo erectus, based on its large brain size.
All of its cranial and postcranial traits are more similar to other species in Homo than to any australopithecine.