Acoustical -> Mechanical -> Electrical Mechanical -> Acoustical -> Chemical Chemical -> Electrical -> Acoustical Electrical -> Acoustical -> Chemical
Which of the following best shows the basic three-step energy transformation for a battery-operated radio?

Options:
- Acoustical -> Mechanical -> Electrical
- Mechanical -> Acoustical -> Chemical
- Chemical -> Electrical -> Acoustical
- Electrical -> Acoustical -> Chemical

Chemical -> Electrical -> Acoustical