The correct option is D artificial introduction of sperm of a healthy donor into reproductive tract
Artificial insemination is performed to overcome problems of normal mating.
In humans, the semen which is usually collected either from the husband or from a suitable healthy donor is transferred into the uterus or the vagina of the female partner.
In case of animals, this process involves the collection of sperm cells (semen) from a healthy male animal followed by the artificial introduction of the semen into the reproductive tract of a female animal by the breeder.