The correct answer is C. Interphase.
Nucleoli are present during interphase, the stage of the cell cycle when the cell grows and prepares for division. They are not present during prophase, metaphase, anaphase, or telophase, the stages of mitosis when the cell divides.
Nucleoli are small, dense bodies found in the nucleus of eukaryotic cells. They are composed of proteins and RNA, and they are responsible for the production of ribosomes. Ribosomes are the organelles that translate RNA into proteins.
Nucleoli are not present during prophase, metaphase, anaphase, or telophase because these are the stages of mitosis when the cell divides. During mitosis, the nuclear envelope breaks down, the chromosomes condense, and the spindle fibers form. The chromosomes are then separated into two daughter cells. Nucleoli are not needed during mitosis because ribosomes are not being produced.
Nucleoli are present during interphase because this is the stage of the cell cycle when the cell grows and prepares for division. During interphase, the cell grows, replicates its DNA, and produces the proteins and RNA that it will need for mitosis. Nucleoli are needed during interphase because they are responsible for the production of ribosomes.