What does the filiform apparatus do at the entrance into ovule?

  • [AIPMT 2008]
  • A

    It brings about opening of the pollen tube.

  • B

    It guides pollen tube from a synergid to egg.

  • C

    It helps in the entry of pollen tube into a synergid.

  • D

    It prevents entry of more than one pollen tube into the embryo sac.

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