Answer:Iron nail
Explanation:
A glass bottle does not contain magnetic material and can't align towards magnetic pole likewise a plastic fork because they are materials that do not have magnetic properties. An aluminium can is made from aluminium which is a weak magnet and can't be made into a magnet. An iron nail is made up of iron which is a strong magnetic material because of the presence of dipole moments and the alignment of its electrons makes its ferro-magnetic and good material for magnetic substance.
