![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
Why does the author mention ships carrying wood?
A.
to show how a species can enter an area by accident
B.
to explain that wood-eating insects are very harmful
C.
to show that an invasive species may be difficult to notice
D.
to explain that wood homes are often harmed by invasive species