NEED HELP ASAP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!! Cassie has a magnet that she holds over an iron nail. The nail moves toward the magnet before the magnet touches it.
Which of the following is true about magnetism?
A.
Magnetism is a force that must directly touch an object in order to move it.
B.
Magnetism is a force that acts at a distance and cannot be seen.
C.
Magnetism is not a force, and therefore it cannot move an object.
D.
Magnetism is a force that can be seen in the air as it moves an object.