Gametophyte and sporophyte are independent of each other in which of the following groups?

Bryophytes are non-vascular terrestrial plants of moist habitats in which a multicellular diploid sporophyte lives as a parasite on an independent multicellular haploid gametophyte that develops multicellular jacketed sex organs. In pteridophytes, the main plant body is a sporophyte which is differentiated into true root, stem and leaves and gametophyte is small or inconspicuous, and it is usually independent. Gymnosperms and Angiosperms do not produce spores. Hence the correct option is A.