Which of the following has an antrum?

What are the changes in oogonia during the transition of a primary follicle to graafian follicle?

II. Corpus albicans on degeneration produces progesterone that helps during early pregnancy

III. Graafian follicles have well developed and large fluid-filled cavity called antrum

IV. Graafian follicle on getting ruptured releases primary follicle via process of ovulation