Answer:
A. roots
Explanation:
This early Devonian land plant had both vascular tissue and, as seen here, roots. Land plants need a structure to both anchor them in place and absorb water and nutrients. Algae can absorb water directly through epidermal tissue. Some larger algae have hold fasts, but their function is to hold in place. Fossilized remains do not indicate the presence of chlorophyll.
(From USATestprep)
