The hormone gibberellin reduces the damage caused by fungal infections because of which of the ...

The hormone gibberellin reduces the damage caused
  by fungal infections because of which of the
  following?
  a. Increased space between individual grapes
  increases air circulation and reduces fungi.
  b. It shrinks the internodes to reduce the number of
  clusters that touch.
  c. It increases the immune response of the plant.
  d. It stimulates a type of signaling molecule that
  shuts down all fungal growth.
  e. None of these are true.

Question 2

Which of the following is NOT accurate in
  describing a hormone?
  a. Hormones produced by a particular species
  affect only that species.
  b. Only those cells that have specific receptors for
  a hormone can respond to it.
  c. Hormones in general are produced by one cell
  and cause their effects in another cell.
  d. Hormones are a type of signaling molecule.
  e. Hormones stimulate or inhibit gene activity.