Ok, I know this is difficult, but there's a picture in the OP. Actually look at this time.
Look at the dating. Note: they are in order of age, not similarity.
(A) Pan troglodytes, chimpanzee, modern
(B) Australopithecus africanus, STS 5, 2.6 My
(C) Australopithecus africanus, STS 71, 2.5 My...