In a series $LCR$ circuit,at resonance,the peak value of current will be [where $E_0$ is peak emf,$R$ is resistance,$\omega L$ is inductive reactance,and $1/\omega C$ is capacitive reactance].

• A
  $\frac{E_0}{R}$
• B
  $\frac{E_0}{\sqrt{2} R}$
• C
  $\frac{E_0}{\sqrt{R^2+(\omega L - 1/\omega C)^2}}$
• D
  $\frac{E_0}{\sqrt{2} \sqrt{R^2+(\omega L - 1/\omega C)^2}}$