Answer:
D. ovary → fallopian tube → uterus → vagina
Step-by-step explanation:
The egg/ovum develops in ovary. Ovary is a specialized organ in female reproductive system which is meant for the production and development of ovum. The ovum lies with in the follicle present inside ovary. The follicles mature from primordial follicle to primary follicle which then matures into secondary follicle, secondary follicle in turn matures into tertiary follicle and eventually it forms graafian follicle within the ovary. During the development of ovum, these follicles undergo several physiological changes. On the day of ovulation, graafian follicle ovulates its egg into the fallopian tube which is a part of female reproductive system. The fallopian tube has finger like projections named fimbriae which act as the receptor of the ovum. After that comes uterus which is also known as womb where embryo gets implanted. The uterus ends in vagina which is a part of birth canal.