Im not 100% sure, but I think the answer is C. If not, Im sorry for bothering you.
A magnet because it will remove only metal and not the saw dust
Hope this helps
Answer:
C.) A generator transforms mechanical energy into electrical energy with the help of static electricuty
Example:
they convert mechanical or chemical energy into electrical energy. They do this by capturing the power of motion and turning it into electrical energy by forcing electrons from the external source through an electrical circuit.
(Hope this helps) sorry if it's wrong
