text: <unk>  (or other combinations with airway or hyperreactivity) is a state characterised by easily triggered bronchospasm (contraction of the<unk> es or small airways).
option_0: Bronchial hyperresponsiveness
option_1: Asthma pathophysiology
option_2: Alpha 1-antitrypsin deficiency pathophysiology
option_3: Air trapping
option_4: Airway obstruction
option_5: Carotid sinus hypersensitivity
option_6: Central neurogenic hyperventilation
option_7: Esophageal motility disorder