What occurs in the life cycle of a moss but not in the life cycle of a gymnosperm?

Mosses release haploid spores from the sporophyte. These spores grow into gametophytes, which produce sperm and egg cells. Gymnosperms also alternate between sporophyte and gametophyte generations and form diploid zygotes when sperm and egg fuse, so C and D describe both groups. Mosses do not produce their gametes in cones, making A the distinguishing feature.

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