You are presented with the question "What can create toxic fumes?" and the following answer choices: 
- cigarettes
 - High temperatures.
 - smoking tobacco
 - harmful substances
 - fossil fuels
 - chlorofluorocarbons
 - Pesticides
 - chemical reaction

Now knowing that high temperatures can cause an object to combust and combustion generates toxic fumes, choose the best answer.


 

  High temperatures.       