In which of the following the male and female gametophytes do not have an independent free living existence? 

In gymnosperms and angiosperms, the male and female gametophytes are highly reduced and are not independent of the sporophyte generation. The male gametophyte is reduced to only a few cells, which are enclosed within the pollen grain. Similarly, the female gametophyte is also highly reduced and is often restricted to just a few cells that are enclosed within the ovule. In both gymnosperms and angiosperms, the sporophyte generation is dominant and has a long-lived, independent existence.

In contrast, in bryophytes, algal, and fungal members, the gametophytes are the dominant phase of the life cycle and have an independent, free-living existence. In pteridophytes, free living gametophyte is present though the dominant phase is a sporophyte.