The correct option is A 2
Anther (2) is a broad knob part of the stamen that is present at the top of the filament (3). Stigma (1) is the top most style (4) which in turn culminates in the swollen end, ovary (8). Ovary consist of ovules (6) arranged on the placenta. Anther is a broad knob part of the stamen that contains two long and cylindrical microsporangia in its lobes. Each microsporangium has inner sporogenous tissue that differentiates into microspore/pollen mother cell or first undergoes mitotic divisions to increase the cell number. These diploid cells undergo meiosis to produce four haploid microspores/pollen grains that remain suspended in central of each microsporangium. This makes option B correct answer.