The orbital speed of electron orbiting around a nucleus in a circular orbit of radius 50 pm is\[2.2\times {{10}^{6}}\,m{{s}^{-1}}\]. Then the magnetic dipole moment of an electron is

• A. \[1.6\times {{10}^{-19}}A{{m}^{2}}\]
• B. \[5.3\times {{10}^{-21}}A{{m}^{2}}\]
• C. \[8.8\times {{10}^{-26}}A{{m}^{2}}\]
• D. \[8.8\times {{10}^{-25}}A{{m}^{2}}\]