Fact 1: Most carcinogens cause cancer by producing mutations in DNA.

Fact 2: Jet fuels are carcinogens.

Given the two facts above, answer the question "What can cause cancer by producing mutations in DNA?" with the following options: 
- A drug.
 - Pesticides
 - cigarettes
 - A computer
 - Toxicity
 - jet fuel
 - copper
 - PDAs


 

      jet fuel   