What do the fossil records tell us about hominins?

A) Hominins were a series of species, with one set of branches that eventually led to modern humans.
B) Hominins were related to chimpanzees but not to humans.
C) Hominins were a diverse group of human ancestors not related to other primates.
D) Hominins were a diverse group of primate species with modern humans as the only surviving group.