The figure shows a section of human ovary. Select the option which gives the correct identification of cither A or B with function/characteristic.

Step-by-step solution

The zona pellucida and thecal cells of Graafian follicle in the ovary after ovulation forms corpus luteum, which produce progesterone. The tertiary follicle changes into the mature follicle or Graafian follicle and forms a new membrane called zona pellucida surrounding it. The Graafian follicle now ruptures to release the secondary oocyte (ovum) from the ovary. During oogenesis in embryonic development, oogonia start division and enter into prophase-I of the meiotic division and get temporarily arrested at that sta