$A$ point charge causes an electrical flux of $-1.0 \times 10^3 \ Nm^2 \ C^{-1}$ to pass through a spherical Gaussian surface of $10 \ cm$ radius centered on the charge. If the radius of the Gaussian surface were $3$ times,how much flux would pass through the surface?

• A
  $3 \times 10^3 \ Nm^2 \ C^{-1}$
• B
  $-2.0 \times 10^3 \ Nm^2 \ C^{-1}$
• C
  $-3.0 \times 10^3 \ Nm^2 \ C^{-1}$
• D
  $-1.0 \times 10^3 \ Nm^2 \ C^{-1}$