Which of the Following Statements About the Relationship Between Plants

Which of the following statements about the relationship between plants and animals is correct?

A) Because vertebrates are more likely than insects to be herbivores, plants have not needed to evolve responses against insect herbivory.
B) Because herbivorous insects usually do not kill the plants they feed on, their role as a selective agent is questionable.
C) Because most plants live a long time, they are less likely to be able to evolve defenses against the herbivores.
D) The fact that most insects are able to eat a wide variety of plants suggests that plant defenses are ineffective.
E) The fact that insects do not exhibit character displacement argues against their ability to coevolve with any other life form.