Please Help I need it!!
(An electric motor uses regular magnets and an electromagnet to create motion. The attracting and repelling forces create rotational motion along with the electric current from the electromagnet.)
What two things can a car manufacturer do to make an electric motor stronger?

A) A car manufacturer can add coils to the electromagnet and increase the size of the magnets causing the rotational motion.

B) The car manufacturer can add coils the the electromagnet and decrease the size of the magnets causing the rotational motion.

C) The car manufacturer can remove coils from the electromagnet and increase the size of the magnets causing the rotational motion.

D) The car manufacturer can remove coils from the electromagnet and decrease the size of the magnets causing the rotational motion.