You are presented with the question "what detects and responds to the daily cycle of light and darkness?" and the following answer choices: 
- chemicals
 - h2o
 - humans
 - goats
 - clouds
 - gravity
 - fens
 - daisies

Now knowing that plants detect and respond to the daily cycle of light and darkness and potted plants in season include chrysanthemums, daisies and cyclamen, choose the best answer.


 

        daisies 