Biology

The correct answer is: B.Metaphase.

Explanation:

1.Metaphase is the stage of mitosis where:

2.Chromosomes align along the metaphase plate, which is the equatorial plane of the cell.

3.Each chromosome is attached to spindle fibers that extend from the centrosomes to the centromeres of the chromosomes.

4.This alignment ensures that, during the next phase (anaphase), the sister chromatids will be evenly separated into the two daughter cells.