Problem: Ella is walking by the lake near her family home when she sees an alligator coming out of the water and heading in her direction. Ella perceives both the threat of the alligator and experiences the sensation of fear at the same time. Ella screams for her parents and runs home. What theory of emotion helps explain Ella's experience? a. Cannon-Bard b. Schachter-Singer c. cognitive appraisal d. James-Lange