To Auscultate for S3 or S4 Gallops in the Mitral

To auscultate for S3 or S4 gallops in the mitral area, which of the following should the nurse implement?

A) Use the bell of the stethoscope with the client in the left lateral position.
B) Use the bell of the stethoscope with the client sitting and leaning forward.
C) Use the diaphragm of the stethoscope with the client in a reclining position.
D) Use the diaphragm of the stethoscope with the client lying flat on the left side.