The correct option is
B a - 5, b - 4, c - 1, d -2
- FSH stands for follicular stimulating hormone and it is responsible for the maturation of the Graafian follicles that are present in the ovary.
- LH which is the luteinizing hormone helps in the development of the Corpus luteum. Corpus luteum secretes progesterone which is important to maintain the thickness of the endometrium.
- Progesterone prepares the endometrium for the implantation of the embryo.
- Oestrogen is the female sex hormone and develops the female secondary sexual characters like the development of the breast, thin voice armpit hairs etc
So, the correct option is 'a - 5, b - 4, c - 1, d -2'