Fact 1: Cancer is a disease in which cells divide out of control.

Fact 2: Cancer is a family of diseases that is characterized by cells that replicate too rapidly.

Given the two facts above, answer the question "cancer is characterized by cells doing what out of control?" with the following options: 
- massive damage
 - smoking tobacco
 - destroying
 - replicating
 - Localized damage
 - failing
 - disappearing
 - Smoking


 

    replicating     