You are presented with the question "What is a result of when the cell cycle is no longer regulated?" and the following answer choices: 
- anemia
 - Smoking
 - Dehydration
 - fever
 - Pollution
 - mutation
 - radiation
 - bacteria

Now knowing that cancer is a disease that occurs when the cell cycle is no longer regulated and cancer is also caused by a mutation, choose the best answer.


 

      mutation   