During Her Morning Walk, Iman Has Encountered a Strange Dog

Multiple Choice

During her morning walk, Iman has encountered a strange dog and fear has enveloped her. Just then the dog's owner appears, pets his dog, and introduces himself and his dog to Iman. The dog begins to wag its tail, and Iman even pets the dog as she breathes a sigh of relief. As she begins the rest of her walk, Iman's heart rate begins to slow down and her formerly sweaty palms are now dry. Her calmer demeanor is due to which nervous system?

A) somatic
B) central
C) sympathetic
D) parasympathetic