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