While auscultating a client's heart sounds, the nurse hears turbulence between the S, and S2 heart sounds. The nurse should document this finding as which of the following?

A. Turbulence heard between S1 and S2 corresponds to systole, the phase when the ventricles contract. A systolic murmur occurs due to turbulent blood flow through the heart valves or chambers during ventricular contraction. This can be innocent or pathological, depending on the characteristics and associated findings. B. S3 occurs just after S2, during early diastole, when rapid ventricular filling causes vibrations. It is often associated with heart failure or volume overload in adults, but it does not occur between S1 and S2. C. Turbulence between S1 and S2 is not an expected heart sound. Normal heart sounds are S1 and S2 only; additional sounds or murmurs indicate abnormal flow or pathology. D. S4 occurs just before S1, during late diastole, when the atria contract against a stiff ventricle. It is not heard between S1 and S2 and is usually associated with ventricular hypertrophy or decreased compliance.