Read the following statements and find out the incorrect statements.
a. Ovules generally differentiate single megaspore mother cell (MMC) in the chalazal region of the nucellus.
b. The MMC undergoes reduction division and produces four megaspores.
c. In a majority of angiosperms, one of the megaspore is degenerated while the other three remains functional.
d. The nucleus of the functional megaspore divides mitotically three times and form 2-nucleate, 4-nucleate and later 8-nucleate stages of the embryo sac.
e. These mitotic division are strictly free nuclear, that is, nuclear division are immediately follwed by cell wall formation.