Answer:
C. Using the scientific method
The correct option is B.
Prokaryotic cells are primitive cells which have no true nucleus and membrane bound organelles while eukaryotic cells are cells that have true nucleus, membrane bound organelles and well defined structures and layouts. Although the two cells are quite different from each other, they share some similarities and one of this is cytoplasm. Cytoplasm is present in the interior compartments of both cells.
Im 98% sure its the 3rd one... the other 2% im not that sure
D. Applying fertilizer granules to your yard