You Have an LRC Circuit with Resistor R = 100 $\varOmega$

Multiple Choice

You have an LRC circuit with resistor R = 100 $\varOmega$ capacitance C = 1.9 nF,and inductance L = 47 mH.What is the characteristic impedance when the circuit is at its resonant frequency?

A) 0 $\varOmega$
B) 194 $\varOmega$
C) 91 $\varOmega$
D) 100 $\varOmega$
E) 110 $\varOmega$