Answer: The correct answer is B) Endocytosis.
Endocytosis can be defined as the uptake of large molecules by a cell that requires energy of the cell. Therefore, it is an energy consuming process.
Example- Ingestion of bacteria by macrophages is an energy consumig process and described under endocytosis.
On the other hand, osmosis ( diffusion of water), diffusion, and facilitated diffusion ( requiring carrier proteins) are all passive phenomenon that do not require energy.