Which Organism Response Most Likely Represents a Change in Timing

Multiple Choice

Which organism response most likely represents a change in timing based on environmental cues related to climate change?

A) A northern plant flowers several days earlier each year.
B) An alpine plant begins to grow as soon as the snow melts.
C) A desert plant undergoes a rapid bloom cycle after a rainstorm.
D) A night-blooming cereus always blooms once a year,for one night only.
E) A plant reaches peak flowering at the same time its major pollinator emerges.