The correct option is
C Transfer of the mixture of ovum and sperm in the woman's fallopian tube where fertilization takes place. The embryo then develops inside the female uterus.
GIFT stands for gamete intrafallopian transfer. In this case, the egg from a female donor and the sperms from father (or a donor male) are mixed in the lab and this mixture is taken and transferred to the mother's fallopian tube where it fertilizes. This is done to achieve a natural conception.
So, the correct answer is 'Transfer of the mixture of ovum and sperm in the woman's fallopian tube where fertilization takes place. The embryo then develops inside the female uterus'.