Which of the following statements is not true about the dicrotic notch that occurs in the cardiac cycle?

• A. It is typically observed just after the closure of the aortic valve.
• B. It occurs due to a brief increase in aortic pressure.
• C. It is a large, sustained peak or deflection point that occurs on the aortic pressure waveform.
• D. It provides information about the functioning of the aortic valve.

Answer: (C)