Answer;
A.. Chemical energy is converted into mechanical energy..
Step-by-step explanation;
In a car engine gasoline is burned, and undergoes a chemical change. Some of the chemical energy stored in the gasoline is converted into thermal energy. This thermal energy is then converted to mechanical energy that moves the car.
-A car engine changes potential chemical energy stored in gasoline into thermal energy and then into kinetic mechanical energy. When gasoline burns it reacts with oxygen to produce carbon dioxide and water vapor. Gasoline is a mixture of octane and similar hydrocarbons.