Given below are two statements:
Statement $I$: Electromagnetic waves are not deflected by electric and magnetic fields.
Statement $II$: The amplitude of the electric field and the magnetic field in electromagnetic waves are related to each other as $E_0 = \sqrt{\frac{\mu_0}{\varepsilon_0}} B_0$.
In the light of the above statements,choose the correct answer from the options given below:

• A
  Statement $I$ is true but statement $II$ is false.
• B
  Both Statement $I$ and Statement $II$ are true.
• C
  Statement $I$ is false but statement $II$ is true.
• D
  Both Statement $I$ and Statement $II$ are false.