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

Fact 2: Cancer is a disease of the body's cells.

Given the two facts above, answer the question "What kind of cells divide out of control?" with the following options: 
- bacteria
 - parasites
 - humans
 - white blood
 - blood
 - stem cells
 - dangerous
 - cancer


 

        cancer 