When You Are Very Nervous,perhaps Before You Must Speak in Front

When you are very nervous,perhaps before you must speak in front of your college class,you notice that your mouth is dry and your heart is racing.This is most likely due to stimulation by the

A) parasympathetic division of your autonomic nervous system.
B) sympathetic division of your autonomic nervous system.
C) motor division of your parasympathetic nervous system.
D) enteric division of your autonomic nervous system.