Answer:
nucleus
Explanation:
In a human epithelial cell, one of the organelles that is most easily viewed under a light microscope is the nucleus. The nucleus is typically one of the largest organelles in the cell and is often centrally located. It appears as a distinct, round or oval structure within the cell when viewed under a microscope, and it contains the cell's genetic material in the form of DNA. Additionally, depending on the staining techniques used, other organelles such as the cell membrane and cytoplasmic components may also be visible, but the nucleus is generally the most prominent and easily identifiable organelle in epithelial cells.
