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

Fact 2: Cancer is also caused by a mutation.

Given the two facts above, answer the question "What can mutations lead to in which cells divide out of control?" with the following options: 
- Smoking
 - resistance
 - a disease
 - viruses
 - AIDS
 - bacteria
 - Leptospirosis
 - cigarettes


 

   a disease      