Biology

The correct answer is: D.They move further apart.

During anaphase, as the sister chromatids are pulled toward opposite poles of the cell, the polar microtubules (spindle fibers that extend from one pole to the other) elongate. This elongation pushes the poles of the cell further apart, contributing to the overall elongation of the cell as the chromatids are separated.

Explanation of the other options:

A.They move closer together: This is incorrect. The poles move ap...