The correct choice is (d) Tertiary follicle
The explanation: The oogonium starts meiosis but is arrested at Prophase I, thereby forming primary oocyte. This oocyte then forms a primary, then secondary, and finally a tertiary follicle with the addition of granulosa cells, theca and antrum. This stage of follicle promotes further division of primary oocyte. Thus the first division of meiosis is completed in the tertiary follicle.