Which Statement Is a Likely Explanation for the Lack of Indigenous

Which statement is a likely explanation for the lack of indigenous land animals on New Zealand and other Pacific islands?

A) Diseases brought by European colonizers prevented land animals from gaining a foothold.
B) These islands had no natural sources of food and water to support wildlife.
C) The islands were never connected to Australia and New Guinea by a land bridge that would have allowed land animals to cross.
D) Tectonic activity would have exterminated any burgeoning forms of life.