If the magnetic dipole moment of an atom of diamagnetic material, paramagnetic material and ferromagnetic material are denoted by\[{{\mu }_{d}}\],\[{{\mu }_{p}}\]and\[{{\mu }_{f}}\]respectively, then

• A. \[{{\mu }_{d}}=0\] and \[{{\mu }_{p}}\ne 0\]
• B. \[{{\mu }_{d}}\ne 0\] and \[{{\mu }_{p}}=0\]
• C. \[{{\mu }_{p}}=0\] and \[{{\mu }_{f}}\ne 0\]
• D. \[{{\mu }_{d}}\ne 0\] and \[{{\mu }_{f}}\ne 0\]