What is the sequence of development of embryo sac?

The correct answer to this question is C. On the topic of sexual reproduction in flowering plants, the order of the development sequence goes from archesporium> mega spore> mega sporophyte> embryo sac. The archesporium is a single sub-dermal cell, which undergoes two meiotic divisions into a total of four megaspores, known as a megasporocyte.

The megasporocyte undergoes cytokinesis after meiosis I and again after meiosis II, then three of the megaspores undergo cell death, and the embryo sac is created from the last surviving megaspore. The length of time of this process can vary depending on the plant and other situations.