There are four light-weight-rod samples $A, B, C$, $D$ separately suspended by threads. A bar magnet is slowly brought near each sample and the following observations are noted (i) $A$ is feebly repelled (ii) $B$ is feebly attracted (iii) $C$ is strongly attracted (iv) $D$ remains unaffected Which one of the following is true?

• A

  $C$ is of a diamagnetic material
• B

  $D$ is of a ferromagnetic material
• C

  $A$ is of a non-magnetic material
• Correct answer
  D

  $B$ is of a paramagnetic material

Hence, the correct answer is option: 'D'.