Correct option is C
Explanation: Magnetic susceptibility (χ) is a measure of how much a material will become magnetized in an applied magnetic field. For diamagnetic materials, the magnetic susceptibility is negative. This means that when an external magnetic field is applied, the induced magnetic moment in the material opposes the applied field, resulting in a weak repulsion from the magnetic field. Diamagnetic materials include substances like bismuth, copper, and lead.
