If $E_{o}$ and $B_{o}$ are the magnitudes of the electric and magnetic fields respectively of an electromagnetic wave in vacuum,then among the following the correct relation is ($\mu_0-$ permeability of free space,$\varepsilon_0-$ permittivity of free space).

• A
  $E_o=B_o \sqrt{\mu_o \varepsilon_o}$
• B
  $E_{o} \varepsilon_{o}=B_{o} \mu_{o}$
• C
  $E_{o} \sqrt{\varepsilon_{o}}=\frac{B_{o}}{\sqrt{\mu_{o}}}$
• D
  $\frac{E_{o}}{\sqrt{\varepsilon_{o}}}=\frac{B_{o}}{\sqrt{\mu_{o}}}$