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Selaginella and Salvania are considered ...

Selaginella and Salvania are considered to represent a significant step towards evolution of seed habit because

A

a female gametophyte is free and gets dispersed like-seeds

B

female gametophytes lacks archegonia

C

megaspores possess endosperm and embryo surrounded by seed coat

D

embryo develops in female gametophyte, which is retained on parent sporophyte

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