In an electromagnetic wave, the electric and magnetizing fields are 100 V/m and 0.265 A/m. The average rate of flow of energy  is

• A

  $26.5 \mathrm{W}/{\mathrm{m}}^2$

• B

  $36.5 \mathrm{W}/{\mathrm{m}}^2$

• C

  $46.7 \mathrm{W}/{\mathrm{m}}^2$

• D

  $76.5 \mathrm{W}/{\mathrm{m}}^2$