Question

Which best explains why magnets can push on or pull other magnets without touching them?
North poles always attract each other, and south poles always force each other away.
A magnetic field surrounds each magnet, which affects other objects with magnetic fields.
Magnets with only a north pole field always attract magnets with only a south pole field.

Answer 1

All magnets have both N and S poles.

N-N and S-S repel, N-S attracts

These two facts rule out two answers above.

Answer 2

A magnetic field surrounds each magnet, which affects other objects with magnetic fields.