To ensure that only the desired pollens fall on the stigma in 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
  $(a), (b)$ and $(c)$ only
• B
  $(b), (c)$ and $(d)$ only
• C
  $(b), (c)$ and $(e)$ only
• D
  $(a), (d)$ and $(e)$ only