Answer:
The correct answer is - helps in separating the chromosomes and pull them to opposite poles.
Step-by-step explanation:
Microtubules have a key role in forming the spindle apparatus or mitotic spindle that help the chromosomes to split during metaphase and anaphase later.
The kinetochore microtubules pull the chromatids to the poles back and forth so they can align along the equator of the cell, This back and forth movement takes place by the assembling and disassembling of microtubules.