Question

when telomeres get too short after repeated cell divisions,

the cell divides more frequently.

the cell becomes cancerous.

the cell stops dividing.

the cell dies.

the chromosomes uncoil.

Explanation:

Telomeres are protective caps at chromosome ends. With repeated cell divisions, they shorten. When too short, the cell can no longer divide (enters senescence) to prevent damage. "The cell divides more frequently" is wrong (short telomeres limit division). "Becomes cancerous" is related to telomerase in cancer cells, not direct short telomere effect. "The cell dies" isn't immediate from short telomeres (senescence first). "Chromosomes uncoil" is unrelated to telomere length. So the correct option is the one about the cell stopping division.

Answer:

C. the cell stops dividing (assuming the third option is labeled C; adjust label if needed, but the content is "the cell stops dividing")