What do you think is the correct sequence of the development of the embryo sac?
Archesporium → Megaspore mother cell → Megaspore → Embryo sac
Archesporium → Megaspore → Megaspore mother cells → Embryo sac
Archesporium → Megasporangium → Embryo sac → Embryo
Archesporium → Nucellus → Embryo sac → Megaspore