[单选题]
If the inductance and the capacitance both double in an 1 f+ qayrw1d7xod 8zv0:iozw ,L vlw3 5-mr9bpoRC series circuit, the resonant frequency of that5 o p-m3lbr9wv circuit will
A. decrease to one-half its original value.
B. decrease to one-fourth its original value.
C. decrease to one-eighth its original value.
D. none of the given answers