[单选题]
Consider an RLC series circuit. The impedance o dskq x(aodz g40mbd::g6bkwl 3t-;c -f the circuit i(b4oy r h61vnx hy1:wdncreases if $X_C$ increases. When is this statement true?
A. always true
B. true only if $X_L$ is less than or equal to $X_C$
C. true only if $X_L$ is greater than or equal to $X_C$
D. never true