Which of the Following Is the Most Likely Plant Response

Which of the following is the most likely plant response to an attack by herbivores?

A) leaf abscission to prevent further loss of tissue
B) early flowering to reproduce before being eaten
C) production of chemical compounds for defense or to attract predators of the herbivores
D) production of physical defenses, such as thorns
E) production of thicker bark and cuticle to make it more difficult to eat