You are presented with the question "What is something that can be hazardous to use in public?" and the following answer choices: 
- smallpox
 - backpack
 - guide dog
 - influenza
 - protective gear
 - cigarettes
 - smoking
 - cell phones

Now knowing that using cell phones can cause people to become distracted and people who are distracted are hazards, choose the best answer.


 

        cell phones 