Paleontological Studies Indicate That,over Millions of Years

Paleontological studies indicate that,over millions of years,

A) groups of species that have coevolved rise and go extinct together.
B) species that occurred together in the distant past still occur together today;the community has held constant.
C) species that arose recently have driven some older species extinct in certain communities.
D) species seem to come and go individually as niches within a community become available.
E) species richness changes very littlE.