(a) Ovulation - LH and FSH attain peak level and sharp fall in the secretion of progesterone
(b) Proliferative phase - Rapid regeneration of myometrium and maturation of Graafian follicle
(c) Development of corpus luteum - Secretory phase and increased secretion of progesterone
(d) Menstruation - Breakdown of myometrium and ovum not fertilised
[CBSE AIPMT 2009]
Correct Option (b) Reason : In secretory phase during ovulation, the follicle breaks and collapes under the continuous influence of Luteinising Hormone (LH). It begins to enlarge and forms a yellowish structure, called the corpus luteum. The corpus luteum plays an important role in the preparation of the endometrium for the implantation of the fertilised egg by secreting oestrogens and progesterone.