text: Normal respiratory<unk>  should be at 4-5cm.
option_0: Reduced respiratory displacement
option_1: Diaphragmatic breathing
option_2: Ventilation-perfusion mismatch
option_3: Eventration of the diaphragm
option_4: Respiratory compensation
option_5: Vocal resonation
option_6: Central neurogenic hyperventilation
option_7: Ventricular reduction