RLC circuit not at resonance

Electricity and Magnetism

An RLC circuit with components related by $R=\sqrt{\frac{L}{C}}$ is tuned to half of its resonant frequency. What is the ratio of the current to the maximum current?

\frac{2\sqrt{13}}{13}

\frac{\sqrt{13}}{4}

\frac{9}{4}

\frac{3}{2}

\frac{1}{2}