As Theresa was riding her bicycle down a hill, she hit a large rock and started to lose her balance. She managed to come to a stop without falling, but noticed her heart was racing and she was shaking. After that, she realized she was frightened. Which theory of emotion best explains this sequence of events?

Answer:James-Lange theory

Explanation:

Theresa's heart racing can be explained by James-Lange's theory which is given by two independent scholars, William James and Carl Lange.

This theory suggests that emotions aroused by our response to external factors. In other People have Psychological responses to external stimuli. Your emotion arousal will depend on how you interpret the external stimuli and each emotion is response to our psychological arousal and emotional behavior.