Non-vascular plants do not possess xylem or phloem because they do not have water-conducting tissue. They cannot carry water and absorb directly by means of their leaflike scale. So that fertilization will occur in a vascular plant, the sperm must swim in a drop of water from antheridium to an egg in an archegonium.
Answer - Option C - have tiny seeds that can only travel short distances
They also do not possess seeds. They possess roots to be able to absorb water and minerals.