Which Sentence Describes the Relationship Between Sporophyte and Gametophyte in the Fern

Which sentence describes the relationship between sporophyte and gametophyte in the fern life cycle?

A) Gametophytes are photosynthetic and partially independent from the sporophytes.
B) Both gametophytes and sporophytes are totally independent from each other and are equally dominant.
C) Sporophytes originate within and are dependent upon gametophytes.
D) Gametophytes are free living and photosynthetic, but are replaced by a dominant sporophyte generation.