Selaginella a pteridophyte shows some advances towards the seed habit. Consider the following statement.
I. Development and retention of embryo inside megasporangium.
II. Homospory.
III. Formation of serveral megaspores within a megasporangium .
IV. Enhancement in the size of male gametophyte.
Choose the incorrect statements with regard to prerequisites for seed habit .
A. I and III
B. I and IV
C. II, III and IV
D. None of these
