Answer:
Cancer cells exit the cell cycle (stop dividing) when abnormal cellular activitiy is detected is your answer.
Step-by-step explanation:
This is the answer because cancer cells are what cause tumors which are basically when cells are dividing uncontrollably. Cancer cells never ever exit cell cycle they are always repeating it causing abnormal production of cancer cells so the last answer cancer cells exit the cell cycle is false making it the answer for this question.