Statement does not describe cell cycle checkpoints?

Defective checkpoints results in death of the cell.

Normal checkpoints make sure the cell has enough resources for cell division. Normal checkpoints ensure the cells commits apoptosis if the cell has a problem it cannot fix itself.

it enhances antibody production by t cells of the adaptive immune system.

hope i'm right

explanation:

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