in angiosperms functional megaspre develope as aresult of free nuclear division into

1. embryo sac
2. ovule
3. endosperm
4. zygote

Hello Student
Correct answer is a) Embryo sac.
Embryo sac is a cell that develops in the ovuleof flowering plants.
Typically it contains eight nuclei formed by free nuclear division of megaspore mother cell.megaspore mother cell divides by meiosis to give rise to four megaspores. one of the megaspore develops into the embryo sac the others abort.