Which event occurs during interphase?

The correct answer is C. The cell grows.

Interphase is the longest phase of the cell cycle, during which the cell grows and prepares for mitosis. The cell grows by increasing its size and number of organelles. The DNA is replicated, and the centrioles appear. Spindle fibers do not begin to form until prophase, which is the first phase of mitosis. Centromeres divide during anaphase, which is the second phase of mitosis.

Here is a more detailed explanation of each option:

• Option A: Centrioles appear. Centrioles are small, cylindrical organelles that are found in animal cells. They are involved in the formation of the spindle fibers during mitosis. Centrioles do not appear during interphase.
• Option B: Spindle fibers begin to form. Spindle fibers are long, thin fibers that are involved in the separation of the chromosomes during mitosis. Spindle fibers do not begin to form until prophase, which is the first phase of mitosis.
• Option C: The cell grows. The cell grows by increasing its size and number of organelles. The cell also replicates its DNA during interphase.
• Option D: Centromeres divide. Centromeres are the regions of the chromosome that hold the two sister chromatids together. Centromeres divide during anaphase, which is the second phase of mitosis.

I hope this helps!