A uniformly charged conducting sphere of 2.4 m diameter has a surface charge density of $80 \mathrm{\mu C}/{\mathrm{m}}^2$. The total electric flux leaving the surface of the sphere is

• A

  zero

• B

  $1.6\times {10}^8{\mathrm{NC}}^{-1}{\mathrm{m}}^2$

• C

  $1.6\times {10}^{-8}{\mathrm{NC}}^{-1}{\mathrm{m}}^2$

• D

  $1/\left(1\cdot 6\times {10}^8\right){\mathrm{NC}}^{-1}{\mathrm{m}}^2$