Biology

The correct answer is: C.centromere.

Explanation:

The centromere is the region of a chromosome that holds the two sister chromatids together after DNA replication. During cell division (mitosis or meiosis), the centromere is crucial for the proper alignment and separation of the chromatids. It is the point where the spindle fibers attach during cell division to ensure that the chromatids are pulled apart correctly.

A.Centrioles are involved in organizing the spindle f...