What Is the Resonance Frequency of a Series Ac Circuit $40.0 \mu \mathrm { F }$

Multiple Choice

What is the resonance frequency of a series ac circuit consisting of a $40.0 \mu \mathrm { F }$ capacitor, a $55 - \Omega$ resistor, and a $0.030 \mathrm { H }$ inductor?

A) $6.9 \mathrm { kHz }$
B) $0.9 \mathrm { kHz }$
C) $6 \mathrm { kHz }$
D) $0.15 \mathrm { kHz }$