The magnetic dipole moment of an electron in the S state of hydrogen atom revolving in a circular orbit of radius 0.0527 nm with a speed $$2.2\times 10^{6}$$ m/s is

A

$$4.64\times 10^{-24}\ \text{Am}^2$$

B

$$9.28\times 10^{-24}\ \text{Am}^2$$

C

$$18.56\times 10^{-24}\ \text{Am}^2$$

D

$$2.32\times 10^{-24}\ \text{Am}^2$$