Which statement best describes cancer cells?

I think a good description is that cancer cells divide abnormally and rapidly. They don't stop growing when they should. But then, can normal cells turn into cancer cells at any time, or is there a specific reason?

Cancer cells are abnormal cells that grow and divide uncontrollably, often invading healthy tissues.

Cancer cells are abnormal cells that multiply without control and can invade surrounding tissues. Understanding this helps prioritize early detection, even if tests can be expensive. Better to pay for screening than for advanced treatment.

It's a really heavy topic to think about, I know. But it's important to understand that cancer cells are essentially normal cells gone rogue; they lose their normal controls and start growing aggressively. It's not your fault, and understanding it helps to fight it better.