The most accepted line of descent in human evolution is:
1
Australopithecus → Ramapithecus → Homo sapiens → Homo habilis
2
Homo erectus → Homo habilis → Homo sapiens
3
Ramapithecus → Homo habilis → Homo erectus → Homo sapiens
4
Australopithecus → Ramapithecus → Homo erectus → Homo habilis → Homo sapiens.