Assertion: At resonance, power of L-C-R series circuit is zero.
Reason: At resonance, `X_C > X_L`.
Options:
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false and R is also false.