Choose the incorrect statement 

• A

  Critical duration of light period for the induction of flowering varies from species to species.

• B

  Not only the duration of light but also the duration of dark period is important for the induction of flowering in plants.

• C

  Shoot apices by themselves can perceive photoperiods.

• D

  A hormonal substance responsible for flowering migrates from leaves to shoot apices for the induction of flowering.