For the series LCR circuit what is resonance frequency and amplitude.

Question

$(a)\;2500\;rad\;s^{-1}\;and\; 5 \sqrt 2 A \\ (b)\;2500\;rad\;s^{-1}\;and\; 5 \; A \\(c)\;2500\;rad\;s^{-1}\;and \frac{5}{\sqrt 2}\; A \\(d)\;25 \;rad\;s^{-1}\;and\; 5 \sqrt 2 A $