A) one pollen grain.
B) a pollen tube.
C) an embryo sac with eight haploid nuclei.
D) microspores.
E) a megasporangium and the cells within it.

A) Meiosis $\rightarrow$ egg formation $\rightarrow$ fertilization
B) Meiosis $\rightarrow$ fertilization $\rightarrow$ egg formation
C) Egg formation $\rightarrow$ fertilization $\rightarrow$ meiosis
D) Fertilization $\rightarrow$ meiosis $\rightarrow$ egg formation
E) Egg formation $\rightarrow$ meiosis $\rightarrow$ fertilization

A) Megagametophyte $\rightarrow$ megasporocyte $\rightarrow$ megaspore
B) Megagametophyte $\rightarrow$ megaspore $\rightarrow$ megasporocyte
C) Megasporocyte $\rightarrow$ megaspore $\rightarrow$ megagametophyte
D) Megaspore $\rightarrow$ megasporocyte $\rightarrow$ megagametophyte
E) Megaspore $\rightarrow$ megagametophyte $\rightarrow$ megasporocyte