Which of the following is used to sprout the potato in winter?

Gibberellin is

Find out the wrong statement.

Which of the following are effects of gibberellins?
$(a)$ It helps overcome apical dominance.
$(b)$ It delays senescence,thus fruits can be left on the tree longer.
$(c)$ Increase in length of axis.
$(d)$ It is used to speed up the malting process in brewing industries.
$(e)$ It induces parthenocarpy.
$(f)$ Promotes female flowers in cucumbers.

Spraying sugarcane crop with which of the following plant growth regulators increases the length of the stem,thus increasing the yield?

Give scientific reasons: Rice plants infected by the fungus $Gibberella$ $fujikuroi$ grow foolishly tall.