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.

• A
  $(a), (e), (f)$
• B
  $(b), (e), (f)$
• C
  $(d), (b), (c)$
• D
  $(a), (c), (d)$