Here's a problem to solve: Giant redwood trees change energy from one form to another. How is energy changed by the trees?

Among the 4 following options, which is the correct answer?

- A: They change chemical energy into kinetic energy.
 
- B: They change solar energy into chemical energy.
 
- C: They change wind energy into heat energy.
 
- D: They change mechanical energy into solar energy.
 