The diagram below shows what happens when four materials of the same size AB, CD, EF and GH are suspended next to one another.
Which of the following statements are correct?
(i) AB is a magnet.
(ii) B and C are unlike poles.
(iii) D attracts E.
(iv) EF is not a magnet.
A (i) and (ii)
B (ii) and (iii)
C (i) and (iii)
D (ii) and (iv)
I didn't understand how this happens