Here the first option is not related with the pro nuclear transfer but simply with the IVF which is a comparatively old technology in the field of assisted reproductive techniques. So its incorrect.
Genetic modification of sperm producing cell is a part of genetic engineering or popularly called as gene therapy and not quite related with the pronuclear transfer.
Development of stem cells into functional embryos is a technique called stem cell-cloning so unrelated with the pronuclear transfer.
Last statement is correct because pronuclear transfer involves the transfer of mitochondria of one cell to the zygote formed by fusing two other gamet cells in order to eliminate the mitochondrial diseases.