[单选题]
Consider an RLC series circuit. The impedance of the circuit inr/l,annmr i 52creases if -o45so-ahu k a7gfet y tfdwuy/+ :w6($X_C$ 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