Erica Saw Her Old Boyfriend and Her Heart Began to Race

Erica saw her old boyfriend and her heart began to race. According to the two-factor theory, is she happy to see him or frightened of him?

A) She is frightened because her emotional reaction came before her heart began to race.
B) You cannot tell because she is not displaying a basic emotion.
C) It depends on how she interprets the situation.
D) She must be frightened because her heart began to race before she reacted emotionally.
E) She must be experiencing happiness because her sympathetic nervous system is active, and that system only activates for positive emotions.