Hawaiian plants lack many defenses, such as toxins, spines, and heavy bark, which would protect them against invasive, destructive mammal species,
such as pigs. Which of the following is the best explanation for this?
O A. There is no way that plants can change to develop defenses
against destructive mammals.
O B. There has been no pressure on plants to develop defenses against
destructive mammals.
C. While Hawaiian plants evolved early in their history, they no longer
need to
D. Hawaii is a very warm climate, and plants need no defenses in
mild weather