A Researcher Notices That in a Given Environment, Plants Tend

A researcher notices that in a given environment, plants tend to grow rapidly and produce few chemical and mechanical defenses. What can she deduce about this environment?

A) It is likely a nutrient-poor environment.
B) It contains no herbivores that eat the plant she studies.
C) It is likely a nutrient-rich environment.
D) It only contains insect herbivores that eat the plant she studies.
E) It is both nutrient-poor and only contains insect herbivores that feed on the plant she studies.