The correct option is D All of the above
The function of vacuoles in fungal cells is similar to that in plants and there can be more than one vacuole per cell. In yeast cells, the vacuole is a dynamic structure that can rapidly modify its morphology. They are involved in many processes including the homeostasis of cell pH and the concentration of ions, osmoregulation, storing amino acids and polyphosphate and degradative processes. Therefore, the correct answer is option D.