The total electric flux leaving spherical surface of radius 1cm and surrounding an electric dipole  is

• A

  $\mathrm{q}/{\mathrm{\epsilon }}_0$

• B

  Zero

• C

  $2\mathrm{q}/{\mathrm{\epsilon }}_0$

• D

  $8{\mathrm{\pi r}}^2\mathrm{q}/{\mathrm{\epsilon }}_0$