Fact 1: Asolar panel converts sunlight into electricity.

Fact 2: Electricity Cars that operate using electricity are the cleanest cars on the market.

Given the two facts above, answer the question "Some cars can now be powered by " with the following options: 
- wind
 - Solar energy
 - fusion power plants
 - brain waves
 - gravitational waves
 - engines
 - sunlight
 - energy


 

       sunlight  