Evidence Indicates That an Ancestral Finch Species from South America

Evidence indicates that an ancestral finch species from South America arrived on the Galapágos Islands and formed many new species, adapting to the diverse environments on the islands. With the evolution of these new bird species on the Galapágos Islands, we expect to find a corresponding

A) increase in the number of bird parasites on the Galapágos Islands.
B) decrease in the number of bird parasites on the Galapágos Islands.
C) increase in the number of bird parasites in South America.
D) decrease in the number of bird parasites in South America.
E) elimination of bird parasites on the Galapágos Islands.