C
Below is a question with multiple-choice answers. Choose the correct option based on your reasoning.

### Question:
Which of the following best shows the basic three-step energy transformation for a battery-operated radio?

### Choices:
A. Acoustical -> Mechanical -> Electrical
B. Mechanical -> Acoustical -> Chemical
C. Chemical -> Electrical -> Acoustical
D. Electrical -> Acoustical -> Chemical

### Answer:
