Respuesta :
Algae are not considered as plants as they do not have roots, stems, and leaves.
What are algae?
They are a group of predominantly photosynthetic, aquatic, and nucleus containing organisms, which are devoid of the following things:
- stems
- true roots
- leaves and
- other unique multicellular reproductive compositions of plants
Algae comprises chloroplasts and generate food by the process of photosynthesis. However, they are not considered as plants, as they are devoid of several other compositions of true plants like roots, leaves, or stems.
Thus, the correct answer is option D.
Find out more information about algae here:
https://brainly.com/question/979323