In a Series RLC Circuit,when Is the Capacitive Reactance Equal

Multiple Choice

In a series RLC circuit,when is the capacitive reactance equal to the inductive reactance?

A) when the resistance of the resistor is equal to the impedance of the circuit
B) when the frequency of the emf is equal to the resonant frequency of the circuit
C) Both A and B are correct.
D) None are correct.