Fact 1: Cancer cells divide more often than normal cells, and grow out of control.

Fact 2: Mitosis is a process by which cells divide.

Given the two facts above, answer the question "Mitosis is out of control due to what?" with the following options: 
- fire
 - infection
 - cancer
 - viruses
 - pathogens
 - Winter
 - death
 - pesticide


 

   cancer      