text: Common risk factors in the development of<unk>  include Allergies, Smoking, Air pollution, and Upper respiratory tract infections.
option_0: Cough risk factors
option_1: Pneumonia risk factors
option_2: Cough causes
option_3: Strep throat risk factors
option_4: Farmer's lung risk factors
option_5: Rhinitis risk factors
option_6: Rhinosinusitis risk factors
option_7: Community-acquired pneumonia risk factors