An RLC Series Circuit, Connected to a Source E, Is $\degree$

Multiple Choice

An RLC series circuit, connected to a source E, is at resonance. Then:

A) the voltage across R is zero
B) the voltage across R equals the applied voltage
C) the voltage across C is zero
D) the voltage across L equals the applied voltage
E) the applied voltage and current differ in phase by 90 $\degree$