While Walking Down the Street You Are Approached by a Man

While walking down the street you are approached by a man with a gun who demands your money.According to the Schachter two-factor theory of emotion,what are you most likely to conclude

A)  Because your heart is pounding in this dangerous situation, you must be afraid. 
B)  It is all right to be afraid in this situation. 
C)  Your heart is pounding because you are afraid. 
D)  You are afraid because your heart is pounding.