As fall arrived, Steven saw that many homes had chrysanthemums planted in their flowerbeds. Their golden colors always signal the oncoming fall season. Many plants respond to seasonal changes.

Why might a plant such as a chrysanthemum bloom during the fall?

a. the plant may be conditioned to live in a particular climate

b. the plant may be better suited to survive in cooler weather

c. the plant may be unable to adapt to cold weather

d. the plant may not respond to seasonal changes ​