The Typical Pattern of Evolutionary Radiation, Such as That Seen

Multiple Choice

The typical pattern of evolutionary radiation, such as that seen in the record of hexacorals, is characterized by evolution that

A) produced large-scale divergence at a very early stage, but not much divergence later on.
B) produced large-scale divergence that continued for many millions of years.
C) produced only new genera and species at the early stages.
D) does not seem to affect the body plan.