Algae are similar to plants and were classified together because
they make their own food through photosynthesis
The correct option is B:
Explanation of the correct option:
Option B:
Explanation of the incorrect option:
Option A:
Algae don't have any leaves, stems, or roots.
Option C:
Algae don't produce any kind of seeds.
Option D:
Algae prepare their own food by themself.
Final answer: Algae are similar to plants and were classified together because they make their own food through photosynthesis.