Fact 1: Atoaster converts electrical energy into heat energy for toasting.

Fact 2: Toasting bread creates carcinogens.

Given the two facts above, answer the question "What can create carcinogens?" with the following options: 
- Pesticides
 - imagination
 - Electrical energy
 - wealth
 - some viruses
 - Abnormal cell growth
 - need
 - one celled organisms


 

   Electrical energy      