What is the correct sequence in the formatio of female gametophyte in angiosperms?
A. Nuclellus`to`Megaspore tetrad `to` Megaspore mother cells `to` Megaspore female gametophyte
B. Megaspore tetrad `to` nucellus `to` megaspore mother cells `to` megaspore `to` female gametophyte
C. Nucellus `to`Megaspore mother cell `to` megaspore tetrad`to`megaspore`to` female gametophyte.
D. Megaspore mother cell`to`megaspore tetrad `to` megaspore `to` nucellus `to` female gametophyte.
