Answer:
C. green algae don't have vascular tissue and must absorb nutrients directly from the environment.
Explanation:
Green algae are avascular organisms and lack the vascular tissues, that is they do not have xylem and phloem. They have a simple thalloid body and absorb nutrients from surroundings. On the other hand, the land-based plants have vascular tissues to transport food, water, and minerals from one plant part to the others.