Can someone help me plz

Positive I believe... because if you drop it it is negative so picking up a book means positive. thanks for the points though!

Explanation:

So we want to know what kind of magnets do we have in the electric motor. So the central rotor is usually the electromagnet and the field magnet is usually the permanent magnet. This is characteristic for most small electric motors. So the correct answer would be D) permanent magnets, electromagnet.