The given diagram represents the female gametophyte of angiosperms. Answer the following:
(i) Name the parts - A, B, C.
(ii) Function of filiform apparatus.
(iii) Part that forms PEN.
(iv) Ploidy of antipodals. 
Draw a neat and well-labelled diagram of a transverse section of a young anther. 
Sexual reproduction in flowering plants takes place or happens when the production of a new organism occurs from two parents by making use of their gametes or sex cells. Both sexual and asexual reproduction can be found in plants. Nearly all flowering plants reproduce sexually. Flowers play a captious role in the process as it carries both the male and female reproductive parts commonly known as androecium and gynoecium respectively.