Atropine is a drug that causes relaxation of the smooth muscle of the digestive tract, a dry mouth sensation, and dilated pupils. Therefore, atropine is a(n)____ drug and mimics the effect of the ____ nervous system.
(a) Adrenergic, parasympathetic
(b) Adrenergic, sympathetic
(c) Cholinergic, parasympathetic
(d) Cholinergic, sympathetic