When There Is Consolidation in the Lung Tissue, the Breath

When there is consolidation in the lung tissue, the breath sounds are louder and easier to hear, whereas healthy lung tissue produces softer sounds. This is because

A) consolidation will echo in the chest.
B) consolidation is a poor conductor of sound.
C) air-filled lung sounds are from smaller spaces.
D) air-filled lung tissue is an insulator of sound.
E) consolidation causes hyperinflation of the lungs.