Here's a problem to solve: A handheld sewing machine uses a battery to make a needle move. The needle goes up and down quickly. Which energy change is taking place?

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

- A: Motion changes to chemical energy.
 
- B: Stored energy changes to motion.
 
- C: Electricity changes to stored energy.
 
- D: Heat changes to electricity.
 