A patient with asthma is prescribed to use albuterol via inhaler before rigorous exercise. Which statement best describes the mode of action for this medication?

Albuterol is an anticholinergic causing dryness of bronchial secretions

Albuterol stimulates the parasympathetic nervous system causing the heart rate to decrease.

Albuterol is a beta 2 adrenergic agonist which relaxes bronchial smooth muscle.

Albuterol is an antihistamine, causing a block in the histamine response.