During Auscultation of the Breath Sounds of an Adult Male

During auscultation of the breath sounds of an adult male client, the nurse hears crackling sounds over most of the chest. Which action by the nurse is the most appropriate?

A) Document this as abnormal.
B) Avoid moving the stethoscope while listening.
C) Place the diaphragm on top of the client's shirt.
D) Switch from the diaphragm to the bell.