The answer is A.True but they are not the only ways in which this can occur.
Development is where the growth of the embryo occurs. After fertilization and implantation, the growth of the embryo occurs once it gets to the uterus. This is the part where the procedure where the embryo turns into a living being over time - depending on the animal that has the said embryo.
It should be an igneous rock because it formed by the volcanoes lava cooling down