The correct option is B artificial introduction of sperms of a healthy donor into the vagina
Assisted reproductive technologies (ART) refer to a set of medical procedures that aim at helping infertile couples bear progeny. There is not one but many techniques available under ART that can help overcome different stages of infertility in both males and females. One such technique is artificial insemination or (AI). In this technique, the semen collected from the male partner or a healthy donor is artificially introduced into the female reproductive tract, usually into the vagina, or the uterus.
Sperms of a healthy donor are not introduced into the ovary.
Transfer of sperm (collected either from the husband or a healthy donor) into a test tube containing ova could be considered as a case of in vitro fertilisation.