Final answer:
Option C). Eukaryotic cells are efficient despite their large size due to adaptations such as foldings of the cell membrane and membrane-bound organelles. These adaptations increase the surface area of the cell and allow for specific tasks to be performed.
Step-by-step explanation:
A cell's surface area to volume ratio falls with increasing cell size. This indicates that the volume of the cell increases more quickly than the surface area. A cell's plasma membrane won't have enough surface area to support the rate of diffusion needed to accommodate the increased volume if it grows too big. Eukaryotic cells have, nevertheless, evolved a number of strategies to get around this obstacle and keep their effectiveness. For instance, they have membrane-bound organelles that carry out particular functions and foldings of the cell membrane that enhance surface area. Despite their enormous size, eukaryotic cells are efficient because of these adaptations.