At What Frequency Is a 0 $\mu \mathrm { F }$

Multiple Choice

At what frequency is a 0.001 $\mu \mathrm { F }$ capacitor operating if its reactance is 45 $\mathrm { k } \Omega$ ?

A) 3.54 MHz
B) 3.54 kHz
C) 354 kHz
D) 35.4 kHz