A college freshman is about to give her first speech in class. As she walks to the podium, she feels her heart pounding much faster and harder than normal. After the speech, she notices that her heart begins to return to a normal pace because:
A. her peers congratulate her on a job well done
B. walking settles her heart
C. the parasympathetic division calms her heart
D. the heart cannot maintain a fast, hard rate for very long
Answer: C
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