Which of the Following Statements About Efforts to Introduce Large

Which of the following statements about efforts to introduce large mammals to small isolated islands is true?

A) The populations never become established and invariably go extinct within a decade or two.
B) Such efforts always result in an initial population explosion, but then there is a crash.
C) Such efforts always succeed and result in the formation of stable populations.
D) Such efforts always result in populations with cyclical population dynamics.
E) None of the above