A nurse is documenting a client's breath sounds. Crackles are heard as:

D
D. CracklesFine crackles are high-pitched, fine, short, interrupted crackling sounds heard during end of inspiration, usually not cleared with coughing.
A. RhonchiLoud, low-pitched, rumbling coarse sounds heard most often during inspiration or expiration; may be cleared by coughing.
B. WheezesHigh-pitched, continuous musical sounds like a squeak heard continuously during inspiration or expiration; usually louder on expiration; do not clear with coughing.
C. Pleural friction rubDry, grating quality heard best during inspiration; does not clear with coughing; heard loudest over lower lateral anterior surface.