I believe the best answer would be A: Community. This is because all those living things and the pond play a part for each other and in doing so they make a community.
The bacteria would be genetically more similar. (apex)
Viruses are not made out of cells, they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Even though they definitely replicate and adapt to their environment, viruses are more like androids than real living organisms.
Answer:
Life assembled from chemical building blocks.
Option 1
Hope it helps!
Your answer is a: how DNA is formed.