Which Statement About Plant Hormones Is NOT True

Multiple Choice

Which statement about plant hormones is NOT true?

A) Plant hormones include at least one form that is a gas.
B) Each naturally occurring hormone has a specific chemical structure.
C) Hormones are among the principal internal regulators of plant growth.
D) Responses to plant hormones may be observed in nearly any part of a plant.
E) All known growth regulators of plants are chemicals produced naturally in plants.