Which of the Following Statements About Biological Control Is False

Which of the following statements about biological control is false?

A) Natural enemies employed in biological control against invasive species are often taken from the native range of the pest species.
B) Biological control can use predators as natural enemies.
C) Biological control can use pathogens as natural enemies.
D) Agents used in biological control occasionally become pests themselves.
E) All of the above are true; none is false.