Biology

The correct answer is: A.line up along the equator of the cell.

Explanation:

During metaphase of mitosis, the chromosomes align along the metaphase plate, which is the equator (middle) of the cell. This alignment is critical for ensuring that each sister chromatid will be separated evenly into the two daughter cells during the next phase, anaphase.

Why the other options are incorrect:

B."Form and the nuclear envelope disappears": This occur...