A Positive Result of a Bronchoprovocation Test Would Suggest All

A positive result of a bronchoprovocation test would suggest all of the following except:
I.Diagnosis of asthma
II.Ruling out asthma
III.Reduction in forced expiratory volume greater than 20%
IV.Decrease of 50% in forced expiratory volume after 1 seCond
V.Hyperresponsiveness of the airway

A) I, III, and V
B) II, IV, and V
C) I, II, and IV
D) III and IV