In Heterosporous Plants, Megaspores Form in ____ and Give Rise

In heterosporous plants, megaspores form in ____ and give rise to ____.

A) megasporangia; egg-producing female gametophytes
B) megasporangia; sperm-producing male gametophytes
C) microsporangia; egg-producing female gametophytes
D) microsporangia; sperm-producing male gametophytes
E) megasporangia; both egg-producing and sperm-producing gametophytes