How Can the Success of One Group of Organisms Promote

Multiple Choice

How can the success of one group of organisms promote the adaptive radiation of a second group?

A) by providing new food resources,habitats,etc.for the second group
B) by filling most of the available niches,which forces the second group to evolve greater diversity
C) by competing with the second group,promoting its adaptive radiation
D) by preying on the second group,which hastens its adaptation