In the treatment of urge incontinence:Single choice

A
a. the α1-antagonist, prazosin increases detrusor muscle activity
B
b. botox inhibits ACh activation of N receptors at the neuro-muscular junction
C
c. the ß3 antagonist, mirabegron increases bladder capacity
D
d. the M3 antagonist, darifenacin causes side effects such as dry mouth and constipation
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