What Important Conclusion That Can Be Drawn from Schachter and Singer's

What important conclusion that can be drawn from Schachter and Singer's (1962) study on emotions?

A) When people are unclear about their emotions,the social context can play an important role in the interpretation of emotion.
B) When people are unclear about their emotions,physiological arousal will be the primary determinant of their emotion.
C) When people are unclear about their emotions,self-perception of facial expressions will be the primary determinant of emotion.
D) When people are unclear about their emotions,the behaviour of other people will not influence the interpretation of emotion.