You are presented with the question "What causes cancer?" and the following answer choices: 
- the skin
 - smoking
 - Pollution
 - cigarettes
 - Asbestos
 - Eating too much
 - Potatoes
 - buffalo sauce

Now knowing that most carcinogens cause cancer by producing mutations in DNA and asbestos is a dangerous carcinogen, choose the best answer.


 

     Asbestos    