Answer:
The correct answer will be- Pteridophytes
Explanation:
Pteridophyte is a group of plant species which evolved from the Bryophytes by having modifications to survive on the land like the formation of vascular tissues.
Although showed modification to land, their reproductive phase is still dependent on the aquatic medium as of Bryophytes, so they produce motile sperms which fuse with the female egg cell by moving or transporting through the water medium.
Since in the given question, the description of the plant species describes the motile sperms with multicellular generations, which are the characteristic features of the Pteridophytes therefore, Pteridophyte is the correct answer.
