Answer:
c) Human blood cells are larger than Bacillus subtilis.
Explanation:
Eukaryotes are typically much larger than prokaryotes. Prokaryotes vary in size from cells as small as about 0.2 mm in diameter to those more than 700 mm in diameter.
Bacillus subtilis, which are rod-shaped, are 4–10 micrometers (μm) long and 0.25–1.0 μm in diameter.
Staphylococcus aureus, which are spheres, are up to 1 μm in diameter.
Yeast cells are typically much larger than bacterial cells and can be distinguished from bacteria microscopically by their larger size. A single cell of Saccharomyces cerevisiae is about 6 μm in diameter.
On the other hand, red blood cells have a diameter of 6 - 8 μm.