Correct Answer: antheridium

Solution : The correct answer is antheridium .

In bryophytes (non-vascular plants) and ferns, the structure that produces and holds sperm cells is called antheridium . Antheridia are the male reproductive organs responsible for the production and release of sperm cells in these plant groups. The antheridium is a pouch-like male reproductive structure in various nonflowering plants, including fungi, mosses and ferns. Attached to the gametophyte by a slender stalk, it plays a crucial role in spermatogenesis —the process of producing sperm cells.