Many Plants Flower in Response to Day-Length Cues

Multiple Choice

Many plants flower in response to day-length cues. Which of the following statements correctly describes the relationship between day length and flowering?

A) The longer the day, the faster a long-day plant will flower.
B) Long-day plants usually flower in the fall.
C) Long-day plants flower in direct response to long days.
D) Short-day plants flower in direct response to long nights.