A 22 K $\Omega$ Resistor and a 2 $\mu$ F Capacitor Are in Series in an Ac Circuit

Multiple Choice

A 2.2 k $\Omega$ resistor and a 2.0 $\mu$ F capacitor are in series in an ac circuit.The rms voltages across each are equal.What is the frequency?

A) 23 Hz
B) 15 Hz
C) 72 Hz
D) 36 Hz
E) There is insufficient information to solve.