Why Would Betaxolol Be Preferential for Glaucoma Treatment in Patients

Multiple Choice

Why would betaxolol be preferential for glaucoma treatment in patients who also have asthma?

A) It preferentially binds b₁-receptor sites and is less likely to cause bronchoconstriction.
B) It blocks only b₂-receptors and leaves asthma receptors unchanged.
C) It attaches to receptors that cause bronchodilation,increasing the effects asthma therapy.
D) It can be used as dual therapy because it will bind to the same receptors that asthma medication binds to.