Which of the following is not true for the duty cycle of a waveform?

• A. Duty cycles can be used to describe the percent time of an active signal in an electrical device
• B. Duty cycle can be used to determine the percentage of the time a signal is active
• C. 60% duty cycle means that the waveform is active for 40% of the total time
• D. 50% duty cycle means that the waveform is non-active for 50% of the total time