Which of These Statements Regarding Biogeography Is False

Which of these statements regarding biogeography is false?

A) Despite their similarities, new world tropical forests and old world tropical forests are occupied by different sets of living organisms.
B) Closely related species tend to be found close together, suggesting they evolved in one place and then spread.
C) Island species are usually most closely related to species found on the closest mainland.
D) Islands tend to be occupied by many land animals, but few or no flying ones.