Diagram showing entry of pollen tube to the embryo sac. Identify $A$ to $G$ in the diagram

• A

  $A-Synergid, \;B-Filiform apparatus,\; C-Male gamete, \;D-Plasma membrane,\; E-Central cell,\; F-Egg nucleus,\; G-Vegetative nucleus$

• B

  $A- Filiform apparatus, \;B- Central cell, \;C- Egg nucleus, \;D-Vegetative nucleus, \;E- Male gamete,\; F- Synergid, \;G- Plasma membrane$

• C

  $A- Plasma membrane, \;B- Synergid, \;C- Filiform apparatus, \;D- Male gamete, \;E-Vegetative nucleus, \;F- Central cell, \;G-Egg nucleus$

• D

  $A- Central cell, \;B- Egg nucleus,\;C-Vegetative nucleus, \;D- Male gamete, \;E- Synergid, \;F-Plasma membrane$