Which one of the following statements is true? A. Capacitive reactance is at a minimum for dc source voltages B. Capacitive reactance decreases as the operating frequency increases C. There is no meaningful relationship between capacitive reactance and operating frequency D. Capacitive reactance increases as the operating frequency increases E. None of the above

As the frequency increases, the capacitive reactance decreases. This is because the capacitor can store more charge at higher frequencies. The higher the charge, the more opposition there is to the flow of current.

Option A is incorrect because capacitive reactance is at a maximum for DC source voltages. This is because a DC source voltage is a constant voltage, and there is no change in the charge stored in the capacitor.

Option C is incorrect because there is a meaningful relationship between capacitive reactance and operating frequency. The capacitive reactance decreases as the operating frequency increases.

Option D is incorrect because capacitive reactance decreases as the operating frequency increases.

Option E is incorrect because the statement in option B is true.