What will be the magnetic susceptibility of material if the magnetic field strength of the material is 1200 A/m and the intensity of magnetization is 0.084 A/m?

A

$$0.5\times10^{-4}$$

B

$$0.7\times10^{-4}$$

C

$$0.7\times10^{-5}$$

D

$$0.5\times10^{-5}$$