To ensure that only the desired pollens fall on the stigma in the artificial hybridization process:
$(a)$ The female flower buds of a plant producing unisexual flowers need not be bagged.
$(b)$ There is no need to emasculate unisexual flowers of the selected female parent.
$(c)$ Emasculated flowers are to be bagged immediately after cross-pollination.
$(d)$ Emasculated flowers are to be bagged after the removal of anthers.
$(e)$ Bisexual flowers showing protogyny are never selected for cross.
Choose the correct answer from the options given below:

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