Approximate ordering by size (smallest to largest) is
- A
Bacterium, virus, animal cell
- B
Animal cell, bacterium, virus
- Ccheck_circle
Virus, bacterium, animal cell
- D
Same size
Explanation
Virus (<del>50 nm) << bacterium (</del>1 µm) << eukaryotic cell (~10 µm). Each scale step is roughly 10× larger.