What are some real life examples of cytoskeleton

In real life examples cytoskeleton can be :

If we take cell as a factory, then cytoskeleton is like a building frame of that factory because it provides mechanical support that enables cells to carry out essential functions like division and movement.

If we take cell a whole  society then cytoskeleton is like roads to that society because it provides a path for the movement of other organelles and materials.

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."