3) A bar magnet is initially 7 cm long, with the south pole on the right and the north pole on the left. If you cut the magnet into two unequal pieces, the left piece will A) contain only a south pole if it is shorter. B) contain only a north pole if it is longer. C) contain a south pole on the left and a north pole on the right. D) contain a south pole on the right and a north pole on the left. E) cannot say anything without knowing the correct length proportions