A charged conducting sphere has diameter 2.4m and surface charge density $10 \mathrm{\mu C}/{\mathrm{m}}^2$ . Electric flux passing through its surface will be :

• A

  $2 \mathrm{x} {10}^7 {\mathrm{Nm}}^2/\mathrm{C}$

• B

  $16 \mathrm{x} {10}^7 {\mathrm{Nm}}^2/\mathrm{C}$

• C

  ${10}^6 {\mathrm{Nm}}^2/\mathrm{C}$

• D

  $2.2 \mathrm{x} {10}^8 {\mathrm{Nm}}^2/\mathrm{C}$