b$.$ You team partners are arguing about an $\backslash ($ A C $\backslash )$ series $\backslash ($ L R C $\backslash )$ circuit in resonance.

$-$ Mary Margaret says: "The voltage drop across $\backslash ($ C $\backslash )$ is $\backslash ($ X$\_\{$C$\}$ I $\backslash )$ so there must be a voltage drop across $\backslash ($ C $\backslash )$ at resonance."

$-$ Regina says, "But at resonance, $\backslash ($ Z$=$R $\backslash ),$ and the voltage drop across $\backslash ($ R $\backslash )$ is the entire EMF of the voltage source, so there can't be any voltage drop across $\backslash ($ C $\backslash )."$

$-$ Is there a voltage drop across $\backslash ($ C $\backslash )$ at resonance? State how you would use your answer to Q$2$ a$)$ to help your partners settle this argument.